Temptations are actually hard to resist especially if it comes with massive returns. But if you stick to your goal and as much as possible control your emotions, selling your bitcoin will definitely be avoided. Have the right mindset and trust your strategy, and above all be patient, dont be deceived with short term temptations as they can lead you to lose and regrets in the end.
Not really. It all comes down to your wealth, what standard of living you're used to.
For instance, when you already own a house, a couple cars, have enough money to travel, some passive income, you don't feel tempted to sell. What's it going to get you? another house, or another car? You can get that anyway by selling the ones you own.
In my case, I don't feel tempted at all because I have that financial safety guaranteed. People who have no savings, still try to get that dream house, or save up for something that will allow them to show off, are the people who think of taking profit.
The smaller % of your wealth your bitcoin investment is , the less tempted you are.