[saxman001]

I struggled with the same thing for years. For me the key to getting it together was moderately increasing my caffeine intake, only consuming caffeine first thing in the morning and eliminating alcohol. I also upgraded apartments and bought a new mattress pillows and bedding which helped me get better sleep.

After I made these adjustments I had the boost in concentration and wellbeing that I needed to take on some of the other adjustments suggested by other commenters.

These adjustments made a night and day difference to my ability to focus. Maybe none of these things are a problem for you, but definitely check in on these areas if you haven't already.