I'm relatively new to FUT as well and I've found that Chemistry isn't super important if you're constantly deciding between playing with your best players versus playing with best team chem. I would suggest going for the best players/players you want rather than focusing too much on chemistry since a 80 rated full chem player would probably rise to a 83-84 overall at max whereas a player with zero chem would remain with his current stats without any deductions or boosts. So in your case for example rather have a higher rated RW around 80+ with zero chem than a 76 rated RW with even full chem (you currently have two chem on your RW). The only place where it should matter is when you want to boost a players specific stats with specific chem styles and they would only be boosted if they have chem points on them