Don't set an exact timeframe but focus on profit-taking.
On point!People should really have this kind of mindset on where they shouldnt think off about timeframe but rather focus out on profit making.
When it comes to 3 to 5 months kind of increase or price changes then all of crypto including Bitcoin itself would have significant movement.
Its neither it would go up or would be down on that time comparing on the price that you had entered.Same goes with altcoins
too on where you cant predict on whats ahead.
It's not only profit taking... It's important to know updates and new stuff that are incoming from the projects. Sometimes prices can go parabolic and understanding why and when is important to maximize profit.