Reply to Beginner struggles : music , venues , and misc

Hi guys,

My name is Evan and I'm very new to djing, as of right now I own an midi fighter spectra and a numark mixtrack.
My biggest problems right now are finding good music, improving my technique , and finding a place to start out.

I'm in college right now and it seems like I cant get a handle on where everyone is finding this great house or trap music. but I'm not sure where to find and download this stuff. where are some good site where I can build my music collection?

currently the biggest problem I'm having with my technique is the fact that I cant seem to mix two song together
well enough to make it a good fit. also , when are good times to use effects, how do I figure out when to switch song and how do I get a good build up from one song and then play the drop on another?

Everywhere that I've tried to dj at I always either get shot down after a song, or I never get the chance to test out my music. what should I do?

If there is someone out there that can help me on my path to greatness, please........ I'm in desperate need of help.