Renouvellement de Titre de sejour

Hello,

Before I was working for a SSII and was able to renew my Titre de sejour on the basis of CDI Contract and Attestation d'employer.

Since last 6 months I have quitted my job and started working as a freelancer (Portage Salarial).

Now the time has came to renew my Titre de Sejour.
Can anyone guide me in how to renew my Titre de Sejour in this case?
Questions
1/ Is it possible to create my own company and be a salaried person in that because to renew my Titre de Sejour I need CDI Contract and Attestation d'employer?

2/ Is it possible to renew my titre de sejour on the basis of Portage Contrat?

All recommendations are welcome.

P.S. you can reply in french as I can understand french but as am not good in writing so I have written my queries in english.

Thanks in advance,
Jay