Helpful things I've bought:

• Blue light blocking glasses: I am trying various types of blue light blockers and will update this comment when I find the best one. Currently I wear clear ones starting at 7pm & switch to orange ones around 8:30; I may start wearing the clear ones earlier to see if that helps. UPDATE: I bought some blue light blockers with red lenses (I believe they're also sold as red light therapy glasses) and Y'ALL. Damn do they make a difference! These are the ones I bought; they're made to block out all blue light and they work really well. New schedule is clear glasses at 5pm, orange glasses at 7pm (or if I'm driving anywhere at night), red glasses at 9pm, up to bed at 10pm. The orange glasses are optional for me at home, but I'm keeping them because of how useful they are for driving. TL;DR: Blue light blockers with red lenses are the best. If you're only getting one pair, get the red ones.
• Sunrise/Sunset alarm clock: This didn't work for the longest time, but now that I have a sleep routine it works amazingly well! I'm waking up naturally now, feeling more rested - love it! I shelled out for the Phillips brand clock, but there appear to be some good dupes now. Look for one that changes color as the light grows brighter/dimmer (should be red at the dimmest setting).
• Blackout curtains: Not only do I sleep better with these closed, but my sunrise clock is more effective. Love them.
• Smart watch: This was actually a gift; I would not have bought one on my own. I have a Garmin vivosmart 4. It doesn't help me sleep but does track my sleep, which I find useful.

Things I intend to buy & will update y'all on:

• Weighted blanket: I have trouble sleeping without a heavy blanket, which makes summer difficult. I hope this will help.
• Light box: I have a portable light box, but it doesn't work super well and I'm hoping to find one that does.