need tips on shorts and cutbacks

so i have a problem with this espetually when getting out of the water. my shorts stick to my legs and sink near my private areas too. do i need now shorts or is this normal? ive had about 4 pairs now, some are worse than others, and these new ones i got at the gap that are more my size (smaller than the others) are thicker but it still happens.
another problem i have is my nose sinking in the wave while dropping in on waves3-6 feet. i know i should just put more weight on the back but i never seem to get it. it happends about 40% of the time and is very disapointing. my board is 6'2'' and im 6'1'' and 155 pounds. it seems to work fine minus getting smacked in the face when the nose sinks. the board has a little waterlog and i thought this might be the problem. ive been surfig for a year and go quite often. should i look for a new board and if so what size?
im also looking for tips on cutting back and turning up waves to drop in again. i can turn to the side alright and get barreled sometimes if i crouch, but even when a wave is forming nicely infront of me, all i can do is ride along it. i want to learn to be able to ride back up a wave.
another problem i have is my nose sinking in the wave while dropping in on waves3-6 feet. i know i should just put more weight on the back but i never seem to get it. it happends about 40% of the time and is very disapointing. my board is 6'2'' and im 6'1'' and 155 pounds. it seems to work fine minus getting smacked in the face when the nose sinks. the board has a little waterlog and i thought this might be the problem. ive been surfig for a year and go quite often. should i look for a new board and if so what size?
im also looking for tips on cutting back and turning up waves to drop in again. i can turn to the side alright and get barreled sometimes if i crouch, but even when a wave is forming nicely infront of me, all i can do is ride along it. i want to learn to be able to ride back up a wave.