I had long covid for three years and consider myself almost fully recovered, though I am less active than I was before I can pretty much do the activities I want to do, I just have to be careful not to do too much in one day.
I spent a lot of time in long covid communities online as I was bed bound for a year. The first thing to say is NEVER push through if you feel that you are in an energy dip. You may have to live a quieter life for a while.
Dr Paul Glynne is the expert in long covid, if you scroll down through the guidelines for holistic guidelines to manage LC then all his recommendations are there. Antihistamines made a big difference to me and to lots of people I know. I was prescribed them by the long covid clinic, but you can now get both types (H1 and H2) over the counter I think. Google 'draw on expert opinion to optimise care for long covid and it should come up
I also did the rest, repair, recover programme with Suzy Bolt here and then the Fern programme. Both were a real life saver, they helped me understand what was happening, gave me tools to deeply rest and then to build up strength and also were a source of friends over that period.
For some reason Mumsnet isn't letting me post links, but you can find her by googling too obvs
You absolutely can get better, but you can't rush it.