Good Samaritan please help me...

I am from the Philippines and currently visiting here my dad in Paris. Im afraid that my tourist visa will expire next month(october) because I want to stay here for good obviously because my fathere is here and I am really inloved with this city. I am going to study french in mairie starting octiber 3. I am also working as a babysitter every tuesday, thursday and friday. The question is, How can I shift my tourist visa into any? I want a clean papers/visa while im here. Please help and guide me to those who knows how can I solve my problem. Thank you very much!