You might have discovered bitcoins late to be rich but nah, it isn't the deal here. To be able to get some knowledge on the basics of bitcoin, go here: http://bitcoin.org/
-Do not trust no one but yourself. Bitcoin has value, which makes it a hot target among criminals.
-Mining? Don't. It is not profitable for small-time newbie. If you want to experience mining, try using some cloud mining service. Put a little amount in your account and never expect for a bountiful return.
-Altcoins are nice, but most of them end up being a scam. Spend some time learning, then if you are familiar with how the system works, try getting into the altcoin trading business. The risk is high, but if done correctly, you'll end up having a nice profit.
Hope I helped you in someway. Again, welcome. Ciao!