What can I do about it or is replacing the last resort?

I've been doing a battery test on my laptop for a while now because it has a significantly shorter lifespan. I received this information after the test, but unfortunately I can't do anything with it.

Could you explain to me more precisely, and whether there are still ways to fix this or whether replacing the battery would be the last option? I've already written to support, but I haven't received an answer yet. If you want to know if I still have the guarantee: unfortunately it has started.

You may be able to get something out of it again if you repeatedly discharge it to 30% and then recharge it to 70. This is the ideal area for a lithium battery