Mechs can be great, but there is a lot to learn first. Basically, you are vaping off a battery (no protections) so understanding how to build, and how to calculate safe battery usage for your builds are very, very important.
There will be tons of folks ready and willing to help if you do decide to go that route, but generally, they are considered fairly "high" up the vaping ladder in terms of skill. By following a lot of the mech threads, I understand ohm's law, and I know how to build. I still don't feel ready to vape a mech, although I will someday. My biggest issue is going to be consistency in use, and I doubt I'd ever take one out of the house.... One mistake can be costly.
Welcome, and I'm sure you can learn about mech mods and vape them safely lots of folks do, but it can be useful to take your time a bit.
Anna