Welcome!
Best advice I can give someone starting out is... Go buy a book, or three... anything by Cervantes, Rosenthal, Frank are all a good place to start. Matter of fact, Cervantes has an awesome "basics" book I picked up about 3 years ago. I've read it cover to cover about 80 times.
Next... Read, read, read... go watch some videos on YouTube, look up Nico Escondido's "Grow Like A Pro" produced by HighTimes, Cervantes also has many videos on YouTube as well.
Last, but certainly not least... soak it up like a sponge. Take in all the information that you can, until it feels like your head will explode, then go read another book and watch more videos... I was reading and watching for almost a year until I felt confident I wouldn't waste my time or money.
Lastly, never forget, advice is worth what you paid for it... if someone suggests you try something and it sounds completely off the wall, maybe it is.
Good Luck, Hope this helps.