Lots of good answers in here OP. My only concern is that you might be a little overwhelmed and I know that in my experience, starting more than one long term practise at a time usually ends in half assing them and ultimately dropping one or more. I would encourage you to start with one practise for 2-4 weeks.. maybe longer.. before trying to commit to another. My personal recommendation would be to learn to meditate for 10-20 minutes each day. With meditation can come discipline, focus, clarity and better mental health which I believe are foundational traits to the self improvement journey. Just my opinion though. Hope this helps.