What am I afraid of? and why?

Question

In a land of no name you start your journey with hands stuck at 3,
there is a tree with two stumps, a half moon you will see.
A fork in the way two roads there must be.
This tree as your guide you travel to mountains only to see this tree before 3.
Onwards you go to a valley that's mirrored after a quick break for some tea.
Amazed by your eyes with this valley a new twist on 3 is just what you see.
Frustrated at least, this tree again, all of it over, here it ends.

What am I afraid of? and why?

Hint:

A fork in the way two roads there must be = Y
This tree as your guide = A
This tree before 3 = AL

Answer 1

Most of the clues were from other people, but I think the final answer is

Lady Amalthea

Each letter of this comes from:

L - Hands on a clock at 3 o'clock
A - Tree (triangle) with 2 stumps
D - Half moon/circle
Y - A forking road
A - Repeated hint
M - Pointed mountaintops
A - Repeated hint
L - Repeated hint
T - Tea
H - An odd valley, mirrored top to bottom
E - A new twist on 3, in that it's a mirrored 3 (as opposed to the clock)
A - Repeated hint

From this answer it seems that you are

King Haggard, from "The Last Unicorn." You are afraid of Lady Amalthea because you think she will free all of the unicorns you have in captivity.

Answer 2

I think I might be afraid of

making rounds in the land of no name for eternity.

Because I am

the hands of a clock (or watch) with roman digits

In a land of no name you start your journey with hands stuck at 3,

I have 3 hands and will never have more: hours, minutes and seconds (or alternatively 2 hands of the clock and one hand of the owner)

there is a tree with two stumps,

we could be talking about the hour 12 (XII) here. The II representing the trunk of a tree, but I'm not convinced about the X as the two stumps...

a half moon you will see.

some watches have moon phases

A fork in the way two roads there must be.

Assuming the riddle starts at time 9, the hour 10 (X) represents a crossroad on my way up

This tree as your guide you travel to mountains only to see this tree before 3.

the hands are climbing all the way up to 12, only to see another tree in 2 (II)

Onwards you go to a valley that's mirrored after a quick break for some tea.

You start your downward journey towards symmetrical hours: IV V VI. 5 o'clock is tea time in England, and also the center of that symmetry

Amazed by your eyes with this valley a new twist on 3 is just what you see.

down at hour 6, you start seing VIII, which is similar to III

Frustrated at least, this tree again, all of it over, here it ends.

from there you see again the tree at XII and realize you will climb the same mountain and go down the same valley for ever.

What a frightening thought.

Answer 3

No need to vote on this community-wiki partial possible solution, here only in case it is on the right path and someone else can figure out more of it.

Suppose that each stage of the poem...

...describes a letter in a phrase.

In a land of no name you start your journey with hands stuck at 3,

B looks somewhat like a stick-figure person grasping a 3.

there is a tree with two stumps,

A looks like a ∧-shaped tree standing on two stumpy legs.

a half moon you will see.

D looks very much like a half moon.

So far, so...

B A D,...

...which seems like the start of something to fear. From here, though, things look more confusing than scary.

A fork in the way two roads there must be.

Y (or T) ?

This tree as your guide you travel

A ?

to mountains

M ?

only to see

C ?

this tree

A ?

before 3.

B ?

Onwards you go to a valley that's mirrored

X ? (V mirrored, as if above a lake)

after a quick break for some tea.

T ?

Amazed by your eyes

I ?

with this valley

V ?

a new twist on 3 is just what you see.

S ?

Frustrated at least, this tree again,

A ?

all of it over, here it ends.

Whew. The only harm actually suffered was by the possible result,
B A D   Y A M C A B X T I V S A,...

...which just can’t be entirely correct.

Answer 4

Partial answer here, incorporating some helpful hints from OP:

Looking at each clue as a hint to a letter of the alphabet...

In a land of no name you start your journey with hands stuck at 3

The hands of a clock at 3 o'clock looks like L

there is a tree with two stumps, a half moon you will see.

Since clue below is Y, guessing tree with two stumps should be something else. U? half moon = D

A fork in the way two roads there must be.

OP says this is Y

This tree as your guide you travel to mountains only to see this tree before 3.

Tree as your guide is A according to OP. 3 here refers again to L.

Onwards you go to a valley that's mirrored after a quick break for some tea.

Imagine two Vs upside down, with a T in the middle - looks like M to me!

Amazed by your eyes with this valley a new twist on 3 is just what you see.

A twist on 3 = 3 reversed = E

Frustrated at least, this tree again, all of it over, here it ends.

Not sure which tree is repeated, going to guess A.

Putting it all together

We have LUDYALMEA, which STILL makes absolutely no sense to me... It seems to make more sense if clue #2 referred to A, maybe the stumps point downwards? Then we have LADY something, which at least seems to be a better start.