It’s hard work. We all have different ideas, opinions and experiences. We all think we are right. We all are.
It is certainly easier to do your own thing. You have less compromises. You do not have to admit your biases. You get to remain comfortably under your own rock. You get less done.
Collaboration is the narrow way. It requires extra effort. It requires willingness to ‘slaughter your darlings‘*. It creates impact. It highlights blind spots. It rounds our perspectives.
Do what works for you.
*to paraphrase William Faulkner when referring to those sentences you absolutely love in your writing. Give them up for the greater good.