This is perfectly valid approach and usually ensures your business stays under your full control.. and generally, small. Get cash flow positive in a sweet niche you enjoy and there's a lot of happiness and stress-free existence that flows from that.
However, when your ideas and market and goals are MUCH bigger, it's better to travel in a group - more ideas, more connections, and more existing wheels to re-use rather than re-inventing/re-discovering everything alone.
Raising capital can be a smart thing to do, but you want smart money not dumb money. Smart money brings expertise, ideas and connections. Dumb money sits quietly and offers no additional input/value. Both have their place but don't confuse the two.
Hard won perspectives.
Congratulations @k00b on the raise - that shit is a lot of hard yards.