New in this hope someone help me

[Mexxxi]

I'm new to this, I have very basic knowledge of "OPSEC", how should I start? I was thinking of buying a very cheap computer to make a "Ghost laptop" (look it up on YouTube), would that be ideal? I also want to know how I can get Bitcoin for all my transactions/buy CCS to work with, and my last question is, since I'm from a Latin American country, can I work with foreign material? THANKS ALOT This Forum help me alot!