Bricks

[dukealien]

we all erected a personal wall  perhaps "each" rather than "all"
crawl behind to be small  shorter line to go with "small" - neat
brick by brick your wall you adore  see below for escaping inversions
scorned you build till the mind is sore
but what point did you notice no door  perhaps  a hyphen and exclamation:  "...notice - no door!"
blocked so much it pains your core
locked in the dark afraid of light 
afraid to loose my inner flight  "loose" is good but something else to go with it.  See suggestion below.
hatred and prejudice reinforce this wall  perhaps "harden" instead of "reinforce," for the rhythm
bricks donated by you all  see, again, about inversions
security wall transforms to a tomb
that peaceful voice whispers soon...  

As a general observation, meter (that is, regular rhythm) seems to go with rhyme.  It's not a *rule* - it just seems to work that way.  Every line doesn't have to have the same meter - for example a short line like "crawl behind to be small"  or "that peaceful voice whispers soon..." is a good change-up.

Inversions (swapping words around from their conversational order - "When I the apple see" instead of "When I see the apple" - is a temptation when you're using rhyme.  It can sound archaic, which is fine in its place.  But as you write more, you'll find normal (English) word order is just another self-imposed requirement to work around - like rhyme, but so natural the reader won't notice.  Which the reader won't notice, either, except that it's pleasing.

Please pardon the rewrite, but I can't help suggesting "afraid to lose my inner fight" for L.8.

Read some of the other poems here or elsewhere, and note how they stick to a form or meter (when they do).  It's OK to tap your foot as you read back what you wrote.

Good effort - have fun!