We must always look for new, fresh inspiration and over time, you need more instead of less. In the beginning, you can do amazing austerities on relatively little nourishment because you are nourished by the belief that you have just taken on the right path after experiencing so much frustration in material life. This gives incredible strength to just go on, but later, we realise more and more that we really need nourishment. This is a big thing that we need to focus on.
Collect nectar! Lots of it! Nourishment means happiness, and every devotee needs to be happy, at least sometimes! We have to have happy moments to remember. Happiness is there in spiritual life. If you do not see it, look better. Search more, because it is there.