not sure.. i guess i'm in some bad period (after five months of hard work) when i'm not sure of myself.. :(

Just keep going. It is hard but you must keep going. Good luck!

Hard things are sometimes good, but could you sidestep whatever it is that's holding you up? Maybe look at the problem from a different angle. Keep fighting!

One good thing about developing and making products yourself is that you can give those ideas time to develop. User feedback is key, I find if I just keep on doing what the users asks for then the product just gets better. They think of ideas I never would have.

I know the feeling. You may feel like shit, but wait until you stop working and you will soon feel dead. I rather feel shitty than dead. you know that songs that goes like "don't stop. believe it....."