whatever you do
dont spent in one place all your funds and in one time
spent small see how it works then buy more.
there are many things you have to solve
1) equipment
2) heat
3) witch pool
4) what coin
5) wallet
6) electricity bill
7) noise
WAF  (wife acceptance factor) these have very low ha ha ha
9) price of coins
10) and the most important of all ROI