Well anyway I am a first year player so I don't know much. I have a few questions for more experienced player.
1] I have a lot of rosin build up on my instrument I've tried everything but don't know what else to do.
2] I need something that will work as a shoulder rest other than a sponge. I can't afford a real shoulder rest so I have to make do until then.
3] My teacher wants me to learn vibrato but I keep moving side to side instead of forward and backward.
4] My bow has rosin build up too and every time I wipe it down more rosin just keeps appearing!
5] I am eventually going to get a higher quality instrument than the one I have now, and want some ideas as to what brand is reasonably priced but good quality for a beginner.

Thanks for your help!

Oh no, I'm worried about your vibrato technique!! If you get in the habit of doing it incorrectly, it can take a very long time to get out of the habit (it'll be in your muscle memory).

I say this from experience. Boy it was a pain to quit moving left to right. I suggest you do what I did: I bought an online program to help me learn (my parents paid for it to be honest), I used Violin Master Pro and it taught me how to do vibrato very well. Check it out:

http://www.howtoplayviolinonline.com/ap/c/violin-lesson