Larger items you might look into a quilt stand. Cos you need to sew the quilt-fabric to the stand to keep it taut. If you are handy or know a handy person, a stand can be made but it's a lot of work if you are not sure quilting is your thing.
There are quilt sewing machines out there to make patterns. They will cost you more then you'll ever earn. Don't bother.
If you have a decent second hand sewing machine, you can quilt layers that are not too thick. But it's not as easy as you may think.
Why not start with a small mugrug? If you have some old cotton cloth around (think old sheets or duvets) and an old wintercoat with batting as filling, you're in. No need to spend any money just to try.
Dissect the old jacket to get the filling(batting) out. I use it either to quilt of stuff toys, objects.
You can then try quilting something small.
Or make something like this with the batting:
