It's a common enough problem that lots of folks keep chess sets near the computer to get both views if they're working something out. You have to be careful in live chess of course where moving the pieces around physically before submitting a move would be considered cheating. And of course you could go "old school" while studying and work through a few games with just a book and a chess set.
2D & 3D Chess board.

I learned chess from chess.com, did tactics and played games here and only here on a 2D board,whennIm playing with a real board now, I cant even see bishop on a2 swooping down to take my Q on e6.
One suggestion, V3 has an option where you can change your 2D game board to a 3D board (more or less). Hopefully, practicing with it should help.

Yes, one can feel dizzy when sitting down and looking at a 3D set after having played on screen a long time. I find it helpful to close my eyes, or get up and move around, looking at the board from a distance and many angles. Also it can help to frequently change the images of the designs you play with on screen. Use a new kind of piece (try any awkward one). Try different background colors, change the size, move it around the screen, and reverse position from time to time.

I am playing for a long time on the 2D board. but I have not good eye on 3D board. Is it common for all? How can I get rid of this problem.