Is it wrong to build a competition to the current company

My company is sort of building a new product and the current product will be archived once the new one takes off.

I’ve already give my best for last 2 years to build such a deep tech product and has kind of decided that this will be my last year depending on the new sales.

With this new product inline that changes everything, this will take another 2 yrs to materialize in terms of sales

However can’t I build this on my own is a new thought that have popped up into my head.

Thoughts??