Keeping a lent and promise is good because It means to Jesus that we care about him a lot, like for example giving up candy or fast food would be good as a lent and promise and don't give up yet keep going you can always do it! 40 days and 40 nights is hard but you cans still do it so don't give up because it means a lot to Jesus. kepe trying, it may be hard but nothing is impossible everything is possible to do