Well, first thing, welcome!!!
My advice is before putting money in, play with the platform. It takes a few days.
Then if you wish to invest, start small. If you have bitcoin buy just one STEEM and see if you can transfer it.
If you don't own any cryptocurrency its matter of couple of days.
So I love your eagerness, but advise to take it step by step.
I have lots of STEEM :) and a lot more on the way. I just can't figure out how to get it into my wallet.
ok you have steem on an exchange like poloniex? or bittrex? if thats the case, its easy to transfer it over. basically , you type your steemit user name as the account name. and your memo (under permissions in your wallet) in the memo . this might help - https://steemit.com/steem/@cryptos/how-to-transfer-steem-from-poloniex-to-steemit-com
transfer a small amount at first just to make sure everything is correct