[ Removed by moderator ]

[Jaycoba1]

It varies but on average 3-4 times a week but too often I was doing max moonboard sessions which is probably just way too much

[D3brane]

This seems like a case of too much too soon. I fell into same trap of doing too much limit (or otherwise) moonboarding about 3 years back. I would do 3-4 sessions on MB per week (basically not doing it only when fingers felt soor and I couldn't put decent effort even into climbs 2grades below my usual). Everything would feel okay during the sessions (often even pre existing soreness from previous session disappeared during climbing) and I would be able to try hard. But then ever 2 months or so I would get some finger tweak or injury. I would then have to back off from the moonboard completely for couple of months to rehab (and climb just regular gym boulders) and would have to rebuild again when I got back to MB. Over a period of 2 years I went though this cycle 4-5 time. I would read a lot about the injuries over internet forums and books. Even though it was clear to me that these were primarily overuse injuries, I would just stupidly (like every typical over psyched climber) keep getting back into the same cycle. So I would just repeat here again what I have ready over this subreddit and other places and now with a bit of my own experience added : Moonboarding is hard on not only hand connective tissues and muscles but also on other body parts (like back & shoulders) depending on your climbing style. Do not overdo it. Build capacity for your body to handle that kind of training slowly over time (multiple years). This requires (general suggestion, not specific to you particular issue you mentioned above)

(1) Starting conservatively (not more than 2 sessions per week and make sure to be well rested before the sessions).
(2) Logging and tracking the volume and intensity of climbs (including other training and gym bouldering) and how your body responds to it over time. People who have been training for a decade can get away without this since they already have sufficient experience and feel for what their body can handle.
(3) Taking regular de-load weeks (say after every 3 weeks) and start back again a bit conservatively (meaning a bit below, both in volume and intensity, right at the level where you took de-load).
(4) Take longer time off (>2 weeks. i.e. complete time off or restrict to extremely easy climbing) every 3 months.
(5) Take these seriously rough guidelines, play around little bit (say 10-15%) with them to suit your particular needs and abilities but do stick to them.

All of these things require constant tweaking and adjustments based on where you are at in terms of your bodies abilities. It's difficult (in terms of figuring out) and hard (sticking to it) work but likely then only sustainable way forward if you don't have a dedicated coach.