I've always been one to practice plugged in and loud as your space allows for. You can't hide behind your mistakes when plugged in and turned up. Also, work on getting chords down clean--plugging in should help here. Also, don't be afraid to record yourself, listen back to it, and check your progression over the next few weeks, months, etc. As for different styles, try to jam with as many different people as you can. You'll pick up variations on strumming, arpeggios, attack, etc. Finally, just play every day and practice how you plan to play, i.e. standing up, while singing, plugged in, etc.
And play to jam tracks or backing tracks from YouTube to work on scales and chord changes. And timing.
Best of luck with it.
Love to play for Him
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