Please start doing tactics training every day. Here are some good tactics books: Chess Tactics for Champions by Polgar Combinative Motifs by Blokh 5334 by Po

Please start doing tactics training every day. Here are some good tactics books: Chess Tactics for Champions by Polgar Combinative Motifs by Blokh 5334 by Polgar Sorry for being harsh in my post. If you've been playing for 3 months, then you're already doing better than your peers by playing with principles. Good luck.