|This is maybe a bit pretentious, but I wanted to tell that long ago. Something coming here on a regular basis is how hard it is to get momentum, to keep the motivation and going ahead when you are tired etc.|
I found that the best solution is to sell. It does not mean that you need to sell a lot, even if it is just $50 a month. Do it. Offer a paid option of your webapp and sell.
The days you will be down, the serendipity will be there and you will get an email from your payment processing gateway: "$50 for you". And this is the best thing you can get, it means:
"Me, the customer, trust you, you have a good product and I am ready to pay for it. You are good."
When you are offering both "totally free" and "paid options" the effect on the moral of getting a sale is higher than the inverse of your conversion rate. It is like drug, you want more of it, you start to make crosses on your year calendar on the wall, you feel good.
Go sell and enjoy accumulating these little red crosses.
And you, what is keeping you rolling? Do you think that in your case you cannot sell right from the start?