Further to the excellent comments above I would add that the majority of witnesses put off their plans in this world for their hope of living in the new one.
Time and again you'll hear something like 'in the new world I will learn the guitar' - why not now? `I will learn how to paint' - what's stopping you from doing it now? 'In the new world I will go travelling and seeing different places' - why are you putting it off, go for it now!
I remember one circuit overseer in his talk saying that the world tells you to buy now, pay later; whereas Jehovah asks his people to pay now (time, energy, commitment) and he will reward them later. It was always to be done in the future.
It was only after leaving that I realised there was nothing stopping me from following my passions now, and it was so annoying to think that I had spent the previous 5 decades oblivious to that fact and wasted my time.