PLS HELP ME

L
Okay so, back then when having sex, my boyfriend and i would always use condom ( it has lube if you know what i mean ) .. and now i have an implant in my arm so we decided to have unprotected sex, i get quite dry down there no matter how much foreplay we do, my wetness doesnt last long or isnt alot. So we use lube quite a lot to avoid dryness and from little tears down there. Back then it was fine, i wasnt sore after sex when going to the loo. The lady part down there was good. But recently ive been quite dry ( my bf said ) like it hurts when he goes in without lube, but then it tears near the vagina hole.. like we use alot of lube but why am i tearing down there and becoming reallllyyyy sore when i go loo, the soreness eventually does go away after few days. Guys help? 😢😢 i told my GP doctor and she said i need to use more lube and ive been doing that but it still happens 😭😭 whats wrong with me 😭😭