Hey there, first time poster here! Sorry in case the formatting is bad, I'm on mobile rn.

Now this requires a bit of background context:

I used to have a lot of contact with my grandparents. We don't live far away from each other so my two little brothers and I used to go to them every day after school (I don't anymore, they still do and I don't mind) so we ate lunch there. My mother always pays them every month so we're basically not leeching out my grandpa's money and effort.


Now to the actual incident (which was about 4 to 6 months ago):

Due to a lot of stupid complications I had to drop out of my apprenticeship and thus have to look for a new one. I had the idea to look for some small jobs to gain first work experiences (my apprenticeship was entirely in a school setting, thus I didn't have much if any work experience) and with that there had to be a lot of paperwork done because Germany. I did as well as I could without much hesitation. 

So one day I was heading to town to try and gather some documents, but didn't get because appearantly I was at the wrong department or something about that. Anyway, I decided to try again the next day and headed to my grandparents' home. I told them about what happened and out of nowhere, my grandmother starts yelling at me about how idiotic what I'm doing is, for, well, not making a phone call instead. 

As you maybe can tell already, I just had no words. I started debating it by how it's just my way of doing things and how it wouldn't have made that much of a difference and in the end I could just have been speaking to a wall and expect the same outcome of it. So I just decided "no." and went tf outta there and haven't come back since.

To provide a little extra info I'll give some reasons why and why not I could be TA:

Reasons why I could be TA:
-I never was the best student or most productive person, I always come off as lazy to them (which I am, but not to an extent where I'd flat out deny common sense). I managed to turn up my motivation but it was too late for them to notice.
(There are multiple follow-up reasons, but I won't list them unless needed)

Reasons why I could be NTA:
-I appreciate the support they attempted to provide to me, but their approach to it was rather harming than helping me. It could have worked if I wasn't me.
-Due to that, especially my grandpa has become more and more condescending to me, which ain't really helpful either. (I sit at the PC a lot of the time, so all they see is me hitting some buttons on the keyboard and mouse, while in fact there is way more to me than that. Therefore I'm looked at as a disappointment by now, I guess [I have slight, but clearly noticable traits of Asperger's which is a form of autism so I didn't have much of a social life either])
-Not making a phone call, really? I mean, COME ON! I'M WASTING MY TIME, NOT YOURS (rather a rant than a reason but count it if you wanna)

So, AITA? You be the judge