What is the minimum I need to do to advance? I practice for something like at least two years--maybe more I don't remember when I started.  I did one 16 day retreat Mahsasi style - as well as two  10 day retreats.  I did periods of meditation at home where I meditated every day. I also keep the 5 precepts   

But I don't see my practice advancing. Maybe it's because I don't do a constant practice and sometimes I stop and don't meditate for a month or two.   

But I can't be sure that if I decided to meditate constantly that I won't stop in two or three weeks so it also makes me not want to try.

Now because I don't see results or at least not strong ones--and I'm aware that results can be less anger, etc--I'm very skeptical of the practice. I don't have motivation to practice. When I thought I am advancing than I was ready for a long road  but I'm not sure I'm advancing.

I still procrastinate the same as I did before, which is a big problem for me. The most important thing is that I don't see that I am more mindful in daily life than when i started! I don't notice more things. I don't label more things. I usually don't label a single thing all day and not only not label but not notice them as well.

EDIT : still would like to get answers - just saying that for now i started trying tthe idea of "tiny habits" of doing AT LEAST 5 minute walking than 5 minute sitting meditation after i wake up and after i eat - if i feel like more than i will do more  

i did try 5 minute meditation in the past - but i didnt try to attach it to an existing habit -   adn i raised the time very fast and i got disapointed when i didnt do the full meditation so i gave up on the 5 minute meditation  - so this time i hope i will keep the 5 minute as the basic  

got inspired by this video : 

https://www.youtube.com/watch?v=AdKUJxjn-R8
While heavily focused on by western practitioners - meditation is only one aspect towards the cultivation of the mind. If unsupported by the right morality and faith, your mind will be too troubled and unfocused to concentrate on the object of your meditation. In the case of Anapanasati and Vipassana, your object is your breath - but even as you're practicing under Mahasi Sayadaw's teachings, you probably notice that you start off focusing on your breath and noting phenomenons as they arise, but somewhere down the line you realize you've been swept away by a stream of consciousness. Only after the arising of many thoughts, do you even realize this has happened and you try to steer your concentration back to your main object and start once more with the noting. Before you're swept away again... 

Thus even if you are able to sit there for a long period of time with the initial intention of practicing meditation, it is difficult to advance.

The keeping of the 5 precepts is a good place to start. But perhaps by investigating the conditioned reality brought forth by the 5 precepts, you can realize for yourself their effects on morality and their qualities of non doubt, non remorse, and arouse sufficient investigative faith to progress.