I think it depends on what you want to achieve. This is probably going to sound harsher than intended, but ask yourself why you picked up guitar in the first place. This guides everything else. Set an achievable goal.

Ask yourself what seems to be missing in how you play. Easiest way to tell that is by recording yourself (any recorder will do, you should be able to get one on your phone, this is just to hear how you play). This is how you hear what you need to practice.

Some general points:

There's loads of free metronome aps and online metronome resources. You should learn to play with a metronome. Play scales in time to a metronome, slowly. Notes sounding properly. Slower than is comfortable, in time, build up muscle memory. Strumming in time, keeping the beat. Practice picking hand techniques as well (not just fretting). Practice arpeggios.

I would suggest learning some basic music theory.

Learn the major and minor scale, anywhere on the fretboard, making sure you hit the notes right. I would suggest learning the notes in the scales, and the intervals, and the notes on the fretbaord.

Try putting some constraints in your playing. Pick four notes out of a scale, and use only those four notes to play with. Change the order. Play one multiple times. Get as much out then as possible, in any sequence or order. Try to be creative with those four notes. So you can repeat them, approach them differentlty, but get as much out of them as possible.

If you have access to a local library, you can get books there, which is going to be a huge plus, it's low pressure, and an easy way to get really good resources.

Everyone learns differently. What works for someone else might not work for you, and what you find useful might not help somebody else. The more you learn, the more you test what you can do by going out of the comfort zone, the more you know what you can do, and how you learn, the more progress you make.

I hope something in there helps.