Helped(ing) me be in time

Great book for anyone, especially the average Joe/Jill, but also investors like myself to help see the bigger picture. My time horizons are typically relatively short term in the scheme of things. That is because a lot of my investments are in biotechnology where I look to buy on dips and sell on sentiment changes. But this may not always serve well, the whole things could change so that this becomes less probable/possible to identify and profit from. So when I buy, I think, what if I have to hold this for twice as long, ten times as long even as what I think right now? Planning for the plan not to work out according to plan and diversifying into intentionally longer term holds that could also do very well in the short term.