Need help.

I've been out of education for a while so I'm having some difficulty organising an essay. Is it acceptable to present my writing like pic related?

I had always done it this way throughout highschool and never had a teacher point it out as a problem. My justification for it was that certain seperate paragraphs (as signified by indentation) had to be kept next to each other for continuitiy. Meanwhile if I'm starting a relatively new/different line of thought a space must exist between paragraphs.

I would appreciate thoughts on this.