I Know My Weaknesses, But Not My Strengths

I need to focus more on knowing my strengths .i know my weaknesses they are slight learning difficulties with reading and writing .that i am slower than some people at learning. That i cannot work in fast environment .i cannot carry or lift to heavy things as I have a bad back. I have vertigo and issues with heights i find it difficult to stand on stools sometimes can't stand on them at all because I feel shakey and dizzy .and I also get shakey and funny climbing to steep or to many stairs and can not go up moving stairs. So I can not reach in high places. I have sometimes that I can't concentrate it will just come on and I am very forget full i am shy and nervous at talking to people .so it's hard to sometimes with all that was is my actual strengths if you get me.