You must build first. It is much easier to sell and you have more pull with a completed or ready system. Also, unless you have real professional experience yo

You must build first. It is much easier to sell and you have more pull with a completed or ready system. Also, unless you have real professional experience you can't call that 4 years experience. If I could count my experience back to my C64 days and Apple II days then it would be highly inflated. Experience usually means professional work experience, at 18 you need to prove yourself more. Deliverables help this immensely and once you throw down experience means minimal. The hard part is building and getting noticed, once that happens the investment part is much easier. Truly great business ventures dont' always need lots of investment though, just enough to buy some time to build it or get it in production.