Good to have you aboard Eddie.
Unless you're completely cack-handed and never used a screw driver or sand paper then you're highly unlikely to do anything you can't put right if you make a mistake.
Use the "Site Search" facility a lot and if you can't get the answer you're looking for ask your question in the Help Desk area. It's probably that other people use other words for what you have in your head.
You're now upgraded to Member status and can post post in just about every area of the forum.