When your life is no longer manageable is when you need to make a change.
Are you currently doing anything to treat your ADHD? Treating ADHD does not have to mean going on meds if you're not comfortable with that avenue.
I went on meds as I didn't have the time to trial and error a proper treatment for myself outside of medicine. I really enjoy the medication I'm on. I feel like I'm getting my personality back. I have energy, I can focus on things or at least be present enough to notice when I'm getting distracted. Total game changer for me.
If you aren't interested in medication here are some things I recommend:
:Look up foods beneficial to people with ADHD. It'll be foods rich in vitamins, minerals people with ADHD are deficient in, along with foods that prompt your brain to produce the chemicals ADHD brains are deficient in.
:Get yourself on a routine. While your ADHD brain will get bored with it, it is vital to get yourself on a sleep schedule, and some form of routine to help keep your brain from distributing hormones, vitamins, minerals, brain chemicals differently every day because it doesn't know what you're going to do next.
:I'm not too sure if naturopathy is popular in your country, but getting a holistic opinion on how to approach it could also help. They may not require an actual diagnosis, or possibly even be able to help you get one.
:Do your own research! Look up other disorders linked to ADHD. I don't know them all, but ones I have are neurodivergent, DSDP, RSD, Hypermobility. Finding ways to manage these will also help.
:Check out Dr. Daniel G. Amen's research on the 7 different types of ADHD. It isn't recognized science, but has helped me navigate my own ADHD different, and in my opinion better than before finding his research.