I want to build a blog. Which language do you recommend me to use? Which is better and why?

I know MEAN, Rails, PHP... But I just can't decide which one to use. I don't wanna use any wordpress-like app (joomla or any other thing).

Thanks! :D

People, help me out.

(first some abstract thoughts)

I am a final year undergrad yet to take steps in the world and i am trying to figure out what to do with my time, what my end goal and next steps should be.

As of now I think my end goal is "relaxation , peace and happiness of me and my loved ones", and to reach there , i need money.

My younger self chose engineering for a particular reason(that i vaguely remember) and weather it was a right or wrong/illogical decision, i guess i am stuck with it and have to use this only to reach my end goal.
Maybe i am regretting this and want to change. Maybe i am just a lazy ass who is bad in his assigned role of an engineer and is running towards glitter in other fields, whatever it is , i am not going against the decision of my past and accepting my identity as an engineer.
I believe once i am able to achieve my goal( that am still not sure about but overall is a good one from general perspective), i guess i will be satisfied

------------------------------------------------
(enough with the deep stuff)

I want to learn how to "learn" . like i am always conflicted about what to do next once the tutor leaves my hand.

for eg, let's say i goto a site abc.

1. They got 1 course each for android , web dev and ai. I choose the web dev course and give my hardworking attention to it
( At this point my choice is usually based on the fact that <A> i should not be stupid to buy all 3 course even if i have money/desire to buy all of em because riding 2 horses is only going to break my ass and <B> some pseudo stats like whichever got more opportunity, which i "like", etc(Point B is usually useless in the long run i guess) )

2. From what i have experienced, these courses usually have a particular list of topic that they cover and apply them to 1 or 2 projects. For eg, say that my web dev course taught me 20 something concepts of basic html/css/js/server and the instructor applied it to blog website

BUT WHAT IS NEXT ?

2.1.
>> Should I make more projects using only those particular list of concepts?
I usually have a ton of ideas that i want to implement now that i know how to build a blog site.
say i got a similar idea to make say url shortner. I start with full enthusiasm but in the middle way there is some new thing that i don't know and when i search the internet, i realize that there are 5 ways to implement such concept, making me wander off towards a whole list of concepts that were not covered in my original 20 concept course. This makes the choice 2. 2

2.2
>> Should I just leave everything , go to docs and start learning concepts from the scratch ??
Usually when i start a project, i soon realize that the original 20 concepts were just the tip of iceberg and there are a ton of things one should know, like how os works, how a particular component interacts with another, how the language is working, how the compiler is executing, etc .
At that point i feel like tearing all my notes away, and learning every associated thing from the scratch. No matter how much my project suffers, i want to know how the things are working from the bottom , like how the requests are being mad, how the routes are working, etc which might not even be relevent for the project.

Why i want to follow approach 2? because of the Goal from abstract thoughts. in theory, having deep knowledge is going to clear my interview thereby getting me a good job.
I will get good money, make projects faster and that will be a happily ever after story.

But in practical this approach is bringing me losses and confusion. every layer of a particular thing i uncover, turns out there is another layer below that. The learning never stops. Plus my original project remained incomplete.

What is your opinon, how do you figure out what to do next?