I make complicated quilts. Keep that in mind when I tell you that making clothing is much easier. Simple quilts (not a lot of bias or points to match up) are easier than garments, though.
More things to keep in mind:
Beware that some garment fabric is difficult to work with, such as one with a nap (velvet, faux suede, corduroy, etc.); it has a mind of its own; "repeat" prints, stripes, plaids should probably be avoided.
If you are a complete novice to garment sewing, there's a thousand things can go wrong. And I'm not sure where to seek advice before you get started, other than a good book and, even so, it won't keep you from all the initial pitfalls. Start simply & inexpensively and take your time. Don't remove your pattern pieces until you are ready to sew those garment pieces together and, most importantly, follow the pattern directions step by step. Having made just about every error possible over the years, I became experienced enough to know where and how I could deviate from the order of instruction, but for a beginner, that is a recipe for disaster.
Also, I like my seam allowances overcast (I have a serger for that).
Lastly, sorry if I'm repeating other responses to your question; I haven't read the whole thread yet.