What ways or practices can one use to establish or re-establish discipline & focus in everyday life?

Examples and whatever I thought was worth mentioning:

1) I need to put myself in a set daily/weekly schedule

2) want to read more(personal; outside of school, separate from things like news or personal research).

3) Work out(body/brain health, despise dieting conceptually and why not?).

4) meditate(I do this once a week with a goup when school's in, and it seems to help.

5) limit(not rely on) caffeine, or similar energy/focus based supplements.

#1 is/was an end goal, but I've realized now that it's also very much so a first step and requirement. I used to stay up late to accomplish things; this practice almost always breaks my schedule or sets it to be broken by normal workday constraints. Aside from homework(formerly) and when I worked night shift this has become increasingly prone to inefficiency. This practic

#5 is he primary underlying reason why I want to work on this. I enjoy coffee and independently of that can take prescribed pharmaceuticals for focus, but both seemed to have become an ultimately degenerate substitute for good discipline in this last semester.

#'s 2&4 are less important independent of each other, but are part of a greater goal to take in less media(TV/movies/social media). At the very least do so finitely(no/less binges)and only with purpose/plan; no mindlessly scrolling facebook on my phone and if watching a movie/show, it should be a deliberate desire to do so rather than already being on the couch and checking Netflix.