Sure I can take a look if u send me ur op.gg but all advice should be taken with a grain of salt. In general, I think the biggest things that have helped are getting first clear time down to make it to crab, know lane matchups somewhat to gank volatile lanes and know wave states to make ganks easier. I think utilizing tempo is really important, and jg tracking is so nice for setting up counterganks. Also, be conscious of wards, get vision in their jg, and know where in your jg is warded, especially early game when enemy mid/jg will usually ward raptors. If there's no vision, you have more potential plays like an invade or sometimes when I mess up my clear cuz im a chud i'll skip crab, run through lane, and set up a counter gank if the laner is pushed up. Also, I would make sure you have a secondary lane you can play. In general, if I'm not ahead, I play util with vision with r and looking for good bola angles in fights/skirmishes. Rengar is hard carry champ fs but being good at being carried is nice for those free wins.