if you're talking mining, instead of trading, then you'll need as many good luck wishes as you can get
as for trading, you can start buy depositing USD to
coinbase. Setting up accounts for USD deposits isnt quick or easy, lots of verifying and all, but you'd be doing same if setting up a stock trading acct
Once you deposit usd, buy BTC, send to trading platform like
Bitfinex (no usa),
Mercatox, Bitmex (no usa),
Cex,
HitBTC to begin your trading (bitfinex is best platform i've ever used)