Procedded to downloaded from my mojang account as normal. All went well to downloading minecraft. The launcher showed up and such. Went to launch but always giving me error message

Well, it goes like this. At first I had trouble even downloading the launcher and constantly came to the message that goes along the lines of "Cant launch game due to minecraft runtime environment" so on so forth. Reinstalled java, took care of that problem. I download the launcher, log into my account like normal then I hit the launch button. The downloading bar above the button starts to download than a screen of nulltime errors start sprouting across the screen. I tried redownloading and such, never worked. Keeps getting glued to this screen and I'm extremely upset at the fact I cant play what I brought with my hard earned money.