Are you in an area with folk clubs, sessions, sing-arounds etc? I am a self-taught musician (on guitar, banjo and dulcimer) and have found that some folkc clubs here in UK sometimes do beginner sessions, slow jams or other kinds of get-togethers where experienced players might be approached for hints and tips. That could be a low-cost way of getting further input to help your progress.

Learning an instrument in a group is a challenge for teacher and learners alike; the group tends to progress at the rate of the slowest learner. I usually approach it by focusing on the one or two things that I really want to get out of the session and if others are more advanced than me I may "switch off my ears" when the discussion goes faster than I can follow, so that I don't get bombarded with too much information and then lose the bits I thought I had gained.

The issue of a practice regime is worth more thought. A short amount of daily practice is best (your brain needs regular exposure to the new skills you are aiming to learn in order to grow some new synapses to capture it!). Practice slowly in order to work on accuracy first. ONLY when you have got something accurate and clean (e.g. a chord change from one shape to another) should you then try and pick the speed up. If you try and practice at speed from the get-go all you will do is practice your mistakes and not your new skills!

Some people (including me)like to record their practice and listen back to it as it gives you a different insight on how you are sounding, and the recordings over time make a good record to reflect on your progress.