Can you first state your openings?
Openings
As white:
Queen Gambit
Bongcloud (In bullet)
King Pawn
As black:
Scillian
Caro-Kann
Bongcloud for black
#1
"I have used only 2 opening quite often."
++ You should have 3 openings:
1 for black against 1 e4, 1 for black against 1 d4 and 1 for white.
"And would like to try new ones."
++ Why? Each time you switch openings you lose more.
You are rated 812. Openings should be the least of your worries.
Blunder prevention should be your #1.
I have used only 2 opening quite often. And would like to try new ones. Please share what opening do you use and which is your favourite?