Not all does have that patience would really be holding something for long term and just ending up on getting few percentage returns on doing so but well this do always falls down on the preference and plans or goals
of certain investor on what are the coins that they would really be tending to hold for long term.Not all does have that kind of similar mindset when it comes to investment, some might prefer long term
and some might prefer shorter ones.Selling decision would really be entirely be depending on someone since there are lots of factors which could really be affecting those decisions that would be made.
Sell if you do see that you are in gains or greens which is really that common sense to do.Never ever sell on negative yet it would really just worsen up the situation.
Depending from your target, I like to point that out since we do have different insight or different trading strategy, like what you have said, some might good for long-term while others are trying to scalp and try to a much shorter term as long as they already accumulated decent amount of profits, or as long as they've met the set target they are good to go.
When we talk about selling at the best moment it is when the market has gone through a builisgh trend moment and is at the highest point it can reach, and this to realize there are many techniques, the best traders always seek success through of the signs, is others through theories, I prefer to rely on Wyckoff's theory, because it is a theory that gives me the exact behavior of what has happened and possibly a mechanism can be established for the prediction that It is what we are looking for in order to participate and win, otherwise it is because we are seeing trading in a different way and it would be more feasible to practice.
The target relies on how you pick your selling position, like you who follow certain paths you know when will be the perfect timing for your investment. It's very important to have one, as you will be able to satisfy yourself in reaching your target. It's all on you when trying to take advantage of this business, more on knowledge base and how you will be going to execute all the sets plan that you have.