Based on this saying having banish bootstrap and it's suffocating uniformity I have the nerv to present a 1/2 finished website. I embraced "simple" HTML5 responsive design and awesome PHP like a hungry rookie and feeling relieved by the half-finished outcome. This has always been my way of dealing with unfinished things in my head.
"Thank you myself I guess this is your chronicle!"
Article update of 26/07/2019:
After a few months struggling with css and lack of free time I "took" the bootstrap path in order to keep it simple yet responsive :)