what should we do if we have some bitcoin at this time, regarding the increase in bitcoin prices that we see today, of course the value is very high compared to the increase in the past years, so do we have to sell some bitcoins at the current price, or even we add value to the amount of BTC that we have today by buying it at the current price for us to store for quite a long time ,?
What are the suggestions & opinions of all of your friends who are here?
This depends totally on you. Every people have different set of goals based on their financial aspects. So looking at different peoples opinion won't help you in your case.
If you think the price is high and you have made enough profit then sell it. If you think you can afford to "lose your investment" and willing to make more profit, then either keep holding the coins or invest more to maximize your profit. In the end, the decision is yours depending on your financial aspects.