Why not try something new it seems like your bored with everything.We all get this way .If it persists its a good sign you need to change what you do,not the PC.
Good Luck in finding what your looking for.
This is something you have to figure out.I did not say it was easy ,but I doubt you would like to keep going on like you are. I still have not found my true niche in life ,but I keep looking.