Hi!
Don't feel discouraged! I agree with @dagnabbit, try and see if you can find an RA gig after you graduate; I did this for two years. After I read a book I loved I brought it up with my undergrad thesis advisor, turns out she knew the woman who wrote the book and sent her an e-mail with a LOR to see if she was looking for a RA. It was the BEST experience I could ask for. I am entering my PhD program with a paper ready for submission (crossing fingers) at a top journal, I have learnt how to work with faculty and got to network with faculty in my field from different institutions.
Also, there is NO doubt in my mind that I would not have gotten into as many programs without this gig.
Hope this helps!