If you aren't too serious, bank roll management is probably not a huge concern. Still, be aware that tournaments are swingy as fuck. Tournament and SnG pros allow for 50 buy-in downswings, at least, in their bankroll. You will obviously not need to do this, but if you deposit $60 dont play 3 $20 games, as good players in long tournaments only crack the money about 15-20% of the time. $4.40 180 mans start every 5 minutes and you can still win $216 for a first, plus you can always play more than one table at a time. The first 3 blind levels are incredibly tight, and when you get a stack less than 15 blinds you are playing jam or fold preflop, so multiple tabling is easy.
Cash games are less swingy, but have better players (usually). Cash pro's usually allow a 20 buy in down swing buffer, so just make sure that, unless you are willing to pump more money in, or not play til next pay day, have more than a couple of buy-ins worth. You still learn heaps from the $5 buy in tables, just be wary that they call a lot, so far less bluffing than usual. Think of them as NPL players, except they know you are supposed to raise preflop, and they don't just 3 bet Aces.
When it comes to cash, find which form you prefer. HU, 6 max and full ring are all very different. HU players are usually good, and it is harder to play, but if you are better than someone, the advantages can be huge. 6 max is good for aggressive players still, and the advantages-if you have a couple of fish on your table-can still be huge. Full ring attracts conservative players, as most of the good ones are only playing about 15% of hands.
If you want advice on how you played hands, ask questions; go in to your hand history, use a converter, and print them here.