Hi everyone, I have been making maps and doing small coding works such as making Lizard Troopers shoot out lasers etc for years, but I want to take that next big step which I have wanted to do for ages which is create a TC. Well... half a TC lol, and I do not plan to release it publicly, but I want to create something like this to be able to tell myself I can do it, and maybe create a TC one day and release it to all of you guys to enjoy, but hey, you gotta start somewhere, right?

I have three main questions to ask and here they are:
1. If there is a tutorial that tells me all the info I need, give me a link plz
2. Where do I begin, Coding, Mapping, WHERE?!?

3. Where are good places to get things such as skyboxes, textures and models for free?
I am NOT releasing this as I mentioned above and this is just my way of introducing myself to creating them and hopefully one day I will release a TC for everyone to enjoy, but for now this is where I must begin. May seem noobish, but you have gotta start somewhere.