Will retinol improve wrinkles and skin texture?

My skin has been rough and wrinkles are more noticeable lately, so I'm thinking about trying a retinol product.
I looked it up and it said to apply it at night and gradually increase the concentration, but I have no idea how much redness or stinging it will cause when I actually use it.
I also wonder if it's okay for sensitive skin to use and if there are any problems when used with other ingredients.
If you have experience using it, please tell us honestly about the effects you felt, the extent of changes in your skin, and the feeling of recovery.
I'd also like to hear expert opinions, so please share the generally recommended concentrations, usage cycles, and any precautions you have.
As a beginner, I would like to know if there are any tips or routines that can help me see consistent results without side effects.
As a result, I'm curious about actual experiences to what extent improvement in fine wrinkles, skin texture, and skin tone can be expected.