How much weight should a 14 year old lift?

Question

at the minute im lifting 20 kilos with arms and shoulders and 25 with legs

i am also about 175cm ( 5' 9" )

Answer 1

Thats a good weight, after you practice that for awhile, you can always increase it, perhaps add a bit after each week.

Answer 2

consult your doctor

Answer 3

not bad......