Hellow Dear Breath,
That concern my advice, there is two advices :
- try to see your futility in your body, how do it express it self phisicaly. And after, if you catch it, study it, whant element it is, how do this feeling mouves, experiance with it. Dont interpret it like a futility, but like feeling that express itself by such and such way in such and such place, it react such and such on metta etc etc. Explore it, is your toy.
- if you suffer, watch at the very middle of you, at the the very middle of your mind, at the very middle of your heart. Do you feel any suffer now? No.. You dont suffer here...
I hope you will try our advices.
Often peoples forget it rapidly, but it's not good or bad, cause if they will dont putt advices in practice, so, after some time of serious practice, they will be able to advice them selfs.