[dero]

I have been mapping for TTT for almost 5 years now so I thought I’d give some helpful resources for you. 

I’m not sure how much hammer knowledge you have so I’ll start with the basics. 
My favorite resource to learning hammer itself was TopHATTwaffle’s V2 series. When I first started I just did my own thing and looked for his videos for help with specific problems/questions. 

For more TTT specific help there is actually an Official TTT Mapping Help Page that will walk you through every aspect of mapping for TTT.