I`ve only been playing the trumpet for a few days now and I realize that my low notes from C to G and up to G to C are really spitty sounding. I know to blow it out, but even after I do it sounds like I`ve just added more (and i`m not). Can someone please tell me how I can control my trumpet better and make my notes clear. I`d love it if u would. ^_^`

Tighten up the Embrochure (how tight yur lips and surrounding area are, if you didn`t know). It could be your tongue is sticking out between your teeth..don`t do that. Other than that...check all the pieces..Something loose could be causing a rattling sound. Hope it helps..
Punk

Check the spit valves, they might be loose causing that sound.

Keep ur lips tighter; also if you just started playing it`s normal, to have that crappy tone.

Try getting a better, more confident tone, instead of just blowing harder.