Soap is too basic (as in the pH is too high not that it's a simple product) for facial skin and really stripping. While you use tret it's really important to keep your moisture barrier intact so that acne will heal quickly and won't scar as much. Always prioritize lessening irritation and keeping your skin hydrated while using tret. 0.025 is pretty gentle, but do not underestimate potential irritation. You only need a pea-sized amount and here's a video on how to apply it. You can either apply it after cleansing or after moisturizer depending on how resilient your skin is. Never ever apply it to wet skin it will cause you to flake and peel which means you also have to wait for moisturizer to dry and sink into your skin if you plan on buffering tret. Since the percentage you were given is the lowest available I think you can probably start off with using it every other day (feel free to use it less frequently 2x or 3x a week if it's too much for you) and on the days that you aren't using tret just focus on moisturizing a lot (even if you're oily).

Products (with links ;D):

Cleansers:

• Vanicream Gentle Facial Cleanser - I don't think very many people here have bad things to say about Vanicream in general. This goes for their other products too and it's super affordable.
• Cetaphil Daily Facial Cleanser
• CeraVe Hydrating Facial Cleanser
  

Moisturizer: (I'm oily too and it's summer so I have a couple recommendations)

• Vanicream Moisturizing Lotion - I use this one, it's a light emulsion and doesn't contest my skin. It's really gentle and some people prefer Vanicream moisturizers if they break out from CeraVe.
  • Vanicream Moisturizing Cream - Same thing but THICKER. I think this is better in the winter for oily-skinned people.
  • Vanicream Daily Facial Moisturizer - Quite a few people on this subreddit use this one.
• CeraVe in the tub - I didn't like this bc it was too thick for me and my oily skin, but many people do like it.
  • CeraVe PM Moisturizing Lotion - I used to use this when I first started it's not bad.

Emergency Items (for when your skin is peeling/super irritated):

• La Roche Posay Cicaplast Baume B5 - Baume? More like the bomb it's a holy grail for damaged skin. This is fantastic stuff, but I recommend buying it from CVS or Walgreens when there's a sale.
• Aquaphor Healing Ointment - You can use this to lock in your moisturizer on your days off tret or a barrier around your lips and eyes to prevent irritation. You can just buy this at the drugstore too since three tubes is kinda a lot.
• CeraVe Healing Ointment - Cheaper at drugstores like some of the other products.
• FAB Ultra Repair Cream - Expensive but some people here swear by it.
  

Important notes: You need to wear sunscreen religiously if you go outside (I just stay indoors lol) because tretinoin does cause photosensitivity. I can't give you recommendations because everyone likes their sunscreen a little bit different (texture, chemical vs physical, tinted or not). You cannot get waxed while using tret because your skin will get ripped off. Shaving is okay and so is threading. If your acne doesn't get better but you can use tret every day without any problems then don't be afraid to ask for a higher percentage and then ease yourself into using that more frequently. Patience is key, it might take a while to see results and you might purge but stay vigilant and consistent. Tretinoin is a marathon not a race.

Thanks for the heads up! Here's a US Amazon link that may redirect better: https://www.amazon.com/Aquaphor-Healing-Ointment-Protectant-Cracked/dp/B076FT4R4H

And you're welcome :)