Some realisations hit hard, like being knifed in the heart. Others flood your being with relief. It is the latter in which we – as a sentient people – find refuge. That refuge for a time provides respite, it strengthens us against the next onslaught of negativity. Negativity is bound to come and go, it is persistent in its attempts to contaminate the everyday. Let it come. Watch it go. That is how to build up your resistance. Practice does not necessarily guarantee perfection, but it gets you a lot closer to it than sitting wishing for expertise to strike you like lightning.
You will have realisations that cause you pain in this life. I suppose that is the sad reality. The happy reality is that one day you will come to realise that the pain was not a waste of time. Nothing ever is, if you do it properly. Your happy realisations will depend on who it is that you are. What makes us wholly happy as individuals is quite specific. What makes us sad is usually group therapy. As it happens.
Realisations, both good and bad, are vital for the growth of our understanding – they are never to be used for overstanding. When you learn something new, or you are shown a different way to do or improve something, you share that knowledge with those you know who will benefit from it. You do not waste time sharing it with those who do not need to know because for them there is no benefit in repetition. In fact, there is no point telling those people anything even once, but do it anyway. Their deafness is not your problem, but it will save you sleepless nights in your future past.