Is it possible to make an oath to control one's actions? Can a person decide to do X action and be able to do it forever... from a mental point of view  -  if physically he can do that action? 

What I'm trying to say is many times I decided to not do anything for fun or to meditate Y time every day but even when it was 5 minutes every day I didn't do it. 

Every time either I didn't want to  sit to meditate or even be mindful of actions  -  or I wanted to watch a YouTube video and pass the time with YouTube videos etc. 

Is it possible to decided to do something and not break it at all?  

I mean for example I keep the 5 precepts by default and will probably keep them at the future hard for me to see a situation I won't  - but for example if I decide to keep the 8 precepts and never break them  (again mentally)  even if I never have to face something like a physical injury  or even friend begging me to go to a movie etc  but just in dealing with my own defilement - can I decide  not do break it in advance and guarantee myself I won't break it in the future (again if physically it's possible to avoid it).
It looks like your problem is that you want to practice but you don't want to practice. 

This whole fiasco can be pondered. The whole thing is the three characteristics manifesting. Are you in control? Do your plans and focus keep ending? Are you suffering? What are you learning? Ask yourself what you are taking for granted.

You could learn a lot by just pondering what is driving your every action, your karma. 

We are either distracted or mindful. 

Check out the 5 hinderances that are in your way. 

Don't make vows or oaths but instead undertake training to not do or to do X and if you fail ponder it but don't react like breaking the training rule must be punished or reacted to is some way. Don't get angry, get compassionate. 

Check out how to overcome procrastination. LOTS of people have procrastination problems. There are a lot of free pdf's or ppt's online about procrastination.

Do not smoke marijuana everyday because it often zaps ones ambition.