Alternatives for Differin?

Thank you so much, Maria for all the information!! This is so so helpful! 🙏 I am committed to follow the routine suggested by you! So in the morning you suggest not to use any cleansers if I understand correctly. Perhaps just wash my face with water? And in the evening I should only use the oil cleanser and skip second water based cleansers all together. How can I remove the oil residue than or maybe this particular Klairs oil cleanser is fine to rinse off only with water? And lastly, Differin in my country is not so easy to access but I’ll definitely try. If I can’t get that, what would be your other suggestion for retinoids? Thank you so much again for all your help!