you can do one thing that will make them to know this is the right season to buy bitcoin or this is the right season to sell off bitcoin to earn income because you have been in that field so long.
You sound like there is a stipulated and/or a best time to buy Bitcoin and to sell Bitcoin too. If I may ask, when is the right time to buy? And when is best time to sell Bitcoin to make gain?
I don't think there is a perfect time to buy Bitcoin, so long as one in interested to invest and has a discretionary income, then NOW is the perfect time to buy.
About a perfect time of selling your bitcoin, what for? Why would you sell? Have you yet accumulated enough, have you reached a full target of accumulation? Even though any investor has a sole right to sell at anytime, but it's better you have a long term goal, because the profit we can make out of our sell now might be so small compared to the profits that might be gotten if we Hodl for more years(4-10 years and above). That's why it is always advisable to have a plan as to allocation of income, settling basic needs and investing in Bitcoin using our discretionary income, by this we invest in peace and can be able to Hodl for long term which is the real deal.