Where Can I Get Resources For Launching A Digital Agency?

Hey!

I am launching my startup properly soon. It is a digital agency with the name Foenix Hub Foenix Hub. We are into Design, Development, and Digital Marketing.

However, this is my first time launching a business. I have never had one before, and I am open to learning.

While I understand that there is no manual for a success startup, I would like to know if anyone has tips or resources that can help make this a success. Kindly share. I would really appreciate.

Thank you!