You have asked a lot of questions in single post. This is bear market and it may last for couple of years. I am saying this on the basis of previous data. Also , no one know the exact bottom, we can only speculate. It could reach 12k or under 10k.
Regarding bitcoin price stability, it may never happen as at times bitcoin dumps while other time it pumps.
I do not know if it will take couple of years. Usually, it is just one year that is bad, then it is in recovery mode, sure it won't break ATH in a year, but it will probably start to recover soon. We had our ATH in October of 2021, so by October 2022 which is in just a few months, it is going to be a full on year where it kept going lower and lower.
I guess that by the end of 2022 and start of 2023 we are going to start having some good recovery. Will it reach 70k+ prices? I do not think so, but I believe that it is going to be fine. This is why I believe that in about half a year we are going to get a start, and from then on for a whole year it will slowly and gradually go higher and higher.