The title in its self gives a wide variation of topics that could be categorized in character development but it is fine to just give out of some suggestive choices. Flexible. 64356y

One of the topics I'm looking for is the development of a character ideas/perspective/view. How they view others/world. ( Like humans are by nature evil selfish bastards that only do things for they own self interest or good by nature looking out for the good of others around them instead of themselves. )

Second topic is internal conflict having to do with self view or self worth in existence.

Third topic would be suicide like the person doesn't view it as a problem or even bothers others with by seeking comfort because they are not worried yet goes day by day normally. Similar to internal conflict having to do with how they handle situations and how they deal with their own mind.

To better expand on the topic of character development. I'm not looking something that only has a minor or backseat to the main story but rather is the story. Either side being a "happy ending" or "tragedy" is fine as long as fillers are not over barring on the story. Romance or any increased variation are fine.

( I cannot properly explain this because it would take awhile and it would ramble on and repeat ).

If you can't make an suggestion then just suggest one that you found enjoyable with a small briefing why it was.

Mmm. Because i've been in a shojo mood, i will throw you some of my old likes.

Vitamin (SUENOBU Keiko)
Its rather short but the character grows in a rather realistic way. It fits into your both 1st and 2nd topic i guess. Check out her other stuff if you like more psychological stuff.

Kareshi Kanojo no Jijou
Well, classic story with a relationship, family drama and growth. You see how they change in of dependence and perspective. Character development IS a huge part of the story.

Cat Street
I liked this, but it might be a bit too ideal an ending for some.

Onani Master Kurosawa

Fits your 1st and 2nd topic. I'm a bit lazy right now, so I'll just link to a review^^"

http://mangaupdates.conexionsite.com/reviews.html?id=381

7 seeds. It has some of The best character development I've read in manga. It starts slow, especially with team Summer B (but this team also gets some of the best character development later on). The other teams are all very interesting as well, and most interesting of all is how all of them react and grow as they meet up with one another and challenge their surroundings.

Kaze no Tani no Nausicaä. A classic from Miyazaki Hayao (Spirited Away, Princess Mononoke, Castle in the Sky etc.). This series deals with environmental themes in a very interesting way, and has an unexpected yet very interesting conclusion.

Thanks for the suggestions.
I'll give Vitamin (SUENOBU Keiko) , 7 seeds and Kaze no Tani no Nausicaä an try. I have read Onani Master Kurosawa , Cat Street and Kareshi Kanojo no Jijou but didn't finish Kareshi Kanojo no Jijou because I dropped it as it was the female character felt overly obsessed about being better then sudden began to like him instead but I could give it another try.
Of the two I did finish I found that they were close to what I was looking for but they stemmed closer to how they should fit in rather then self growth and worth. But not the less thank you for the suggestions.

Read Vitamins like it cause of the ending but the start was irritating. The whole thing "fool me twice same on you, fool me three time shame on me". Kind of thing came to mind.
An prime example of what was looking for was Jisatsutou.(Certainly didn't like it at first but bared through the start and started getting better.)
Just don't take the three topic choices as absolutes but as an example of what I was looking for and still am.

7 Seeds, as others have said, is quite good.

I'd also suggest:
Cheese in the Trap, although on a more interpersonal scale.
Team Medical Dragon--on the politics of the medical industry and the humanity of patients, paying attention to the intern.
Death Note, if you haven't read it yet.
Vinland Saga, in particular, seems to fit what you're looking for. If anything, read this one.

Seconded 7 seeds. you could also try other manga by Tamura sensei, Basara. The art might take a while to get used to.

Nowhere Boy deals with self worth/ existence topic.
Watashitachi no Shiawase na Jikan - fit the first and second topic.
Oyasumi Punpun

If you're fine with light novel, try Utsuro no Hako to Zero no Maria (Novel), it fit the first and the second topic.

Holyland?
i suppose it kind of falls under both topic 1 and 3...

🙂