My cat is driving me crazy what should I do??:  

I've had this cat ever since she was a kitten (she is now 9 years old)& I love her, but my patience is starting to run out with her. Her name is Shakespeare & lately she has been acting out. I find her spread out sleeping on my dinningroom table, but to make matters worse she has fleas. Lots & lots of fleas. She also has flea bites that are scabbing over. She scratches so bad that she has been pulling out her flur. I find it everywhere around the house. I have tried everything to get rid of them. Flea baths, flea sprays, flea powder. You name it I've tried it. There is only one thing that I found to have worked. The thing is it costs $40 but then it only lasts for one month. We just can't afford to buy that every month. Then there is the fact that she constantly eats...all day long on & off she eats. She eats so fast sometimes that she throws it right back up. Then I find that all over my house afterwards. She has done that ever since she was a kitten but lately it's gotten much worse. I have stains on my carpet that wont even come out anymore. I thought about picking up her food dish, but I can't because my other cat is a picky eater. She nibbles here & there through out the day. The thing is I don't know what to do. I am so stressed out. I have tried everything, but I am at my wits end. I am now at the point where I want to get rid of her. I just can't take it anymore. What would you do? Would you find her a home or just keep on trying? Please help if you can. Thanks.