[mhdi_kr99]

you're right, I've never played chess before started 3 months ago. thank you for sharing your thoughts on this

[mna_]

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.