Newbie Hello

You lot are frightening me I haven't even started yet and I am pulling my hair out.   

The good thing about this hobby is that you can learn what to do without knowing why. Then if you are interested in why you can research that at your leisure. Some of us like to learn about water chemistry (as I have a chemistry degree I do find the chemistry to be interesting). Others are more interested in growing plants so learn a lot about that. Or breeding fish. Starting out is a steep learning curve. There is plenty time for further reading once you have the basics right 

I cannot emphasize enough how steep the initial learning curve is. It's steeeeeeeeeeeeep.
Even with reading up on as many topics as you can, when you have responsibility for the welfare of live animals it is very different. Fish are a little different to most pets because of their environment.
Any problems can cause a lot of panic, so please use the resources around you. We are here to help, those of us with less experience can provide moral support, while those with more experience can provide answers and advice.
It's also worth getting to know the staff at your LFS, although their job is to sell stuff, most of them are passionate about fish and can also provide useful information.
Finally a warning. You will find yourself interested in the "why" and start researching, whether it be the chemistry, plants, whatever, and then a whole, huge, watery world of wonder will become apparent. At that point you'll find that it has all become very addictive, and you will need huge reserves of willpower not to immediately start planning your next tank.     

Quote from: Littlefish on September 19, 2017, 08:27:48 AM

you will need huge reserves of willpower not to immediately start planning your next tank.

So that's your problem, Littlefish, lack of willpower 

Absolutely Sue.
I'm almost as bad when I see new plants for the garden.