If you were racing last night around 2am eastern (I'm in NYC), I know exactly what you mean.
Something happened last night that really made me recheck what server I had joined as there were about 14+ people on yet about half were crashers.
I was pushed off the road intentionally while passing them, brakechecked for following close, used as a brake, etc.
Thankfully, that happens very rarely but I guess it was one of those nights.
Us US players have to deal with things a bit more often as most of the admins are sleeping during the time we play, but I expected that from day one.
If you just started playing, join servers that are not packed. You are going to have a much easier time racing there and learning the tracks and tricks.
If you run into me, feel free to ask for a set or advice (I only race the XFG on CTRA) and I'll be more the willing to help, as I'm sure would most of the forum-ers here. My ingame name is Phreak23.
Hope your experience improves very soon. However, If you can, spend another $25 in the future as S2 will give you much more options in terms of racing variety.