I know everyone wants an attractive lifestyle/career but we have to understand that not all the jobs and subjects are interesting. Like myself, I'm a law student and I find this stuff very boring and monotonous.
After a hard day's studies, I find myself pretty tired and "brainstipated" that I'm no longer the funny and exciting guy I was during the holidays.
This affects not only my game, but also the supposedly-good times I spend with my friends with I hang out with them.

Guys any suggestions on how to keep being motivated and funny after a long day of boring stuff? Is watching some random funny stuff on the Internet going to help?

I don't know, how about sleeping?

For me engaging in pointless banter with women recharges me. If you are good with women it should be a source of energy.