Do what you feel comfortable with, whether that be going up to 2/4 or staying and gaining experience at 1/2.

My advice to you would be to not move up until 1/2 until you feel perfectly comfortable doing so, also make sure to post some tricky hands so the senior FTR guys can validate that your game is solid enough to move up.

Just make sure you're comfortable moving up and bankrolled to move up.