I can't say whether you're capable to play at that level or not. What I can say though is I had the same boredom problem you had and also did not want to move to multitabling. I found though that once I did, it wasn't overwhelming and I thought it improved my game. I was able to get into more hands (rarely two at once) and participate in more hands to learn from. More hands you play, the more you learn from IMO. However, if you play too many tables and get overwhelmed, you'll probably just piss away your bankroll.