Needing some encouragement..

Hey guys, so recently I had a really good job working as an an accountant and financial advisor for an engineering company, but due to budget cuts and their economic state, the small business I was working for filed for backrupsy and told me to look for another job. So out of desperation I'm now working  long hours a day at a fast food restraunt. I had a falling out with a lot of my friends because all they seem to care about is fashion and which club to go too, I couldn't ever just talk naturally or be myself I suppose. My fiancé spends all his time on video games when he's not working. I'm new working the front counter on a cash register which seems like a different language to me and because I'm still learning I have annoyed and rude customers and co workers constantly yelling at me. Like... What else is life? Is this all there is to it? I guess I'm looking for advice or people with words of wisdom who have been or are in a similar situation. My life just feels pointless and I live and breathe everyday for the purpose of giving people their daily grease meals. I just feel alone and I don't have anyone and I'm sure there's someone else out there who's been through stuff and has advice?