Black screen / restart after launching normal apps

I keep having this issue continuously,

My mac does not start immediately, this is the process and what happens afterwards

1) Turn on

2) Immediately press ctrl+al+R+P

3) Black screen

4) I hear the chimes several times (at least 7 or 8 times)

5) After many chimes the screen color appear (dark blue) and I see the apple.

6) Everything is ok, I can use safari or launch Imail, ...etc

Once I want to launch something that might need graphics (this is my analysis) such as :

• Including signature or image in a PDF using acrobat
• Working with word/powerpoint
• Using music software (DAW, plugins, ...)

Immediately, the screen turns black, I hear the chimes, there is the keyboard light.

When I try to push any button I hear kind of an error sound.

So I have to turn it off, normally or by resetting the battery and try again a bit later.

I really do not know what to do, the apple shop I went suggested me that the best way is to buy a new mac book and they will recover all my data to the new one.

I was planning to buy a new one but not exactly now, probably next year, until then I really can not stay like that.

I have a backup of course, and I am working with another computer (pc) but I really want to solve this issue.

Any advice is welcome.

Thanks in advance