I am a 17 year old boy and weight about 145 rough estimate maybe a few pounds lighter im about 5'5

And today in weights class I maxed out on squats a 255 but I didn't have time to go higher Im sure I could of gone to 265 at least

And I can bench 165

but my power cleans suck i can only power clean 115 or sometimes only 95 pounds

is it that my technique sucks or what