What you need is to start fresh but with a much gentler product. Pure retinol at high concentrations is pretty harsh on sensitive skin, so I totally get why your skin is like this. My recommendation is to switch to retinaldehyde or very diluted retinol (like 0.25% or less), which are "cushioned" versions of retinol that work just as well but without attacking your skin barrier so much. There's also retinol ester if you can find it, which is a bit gentler still.
The important thing right now is to stop the irritation. For a couple of weeks, use the retinol only once or twice a week, and apply it to completely dry skin (wait a few minutes after washing). Then apply a heavy moisturizer on top, something with ceramides or hyaluronic acid. Don't mix the retinol with anything else in that application. Some people use the "sandwich" technique (moisturizer, retinol, moisturizer again) if the irritation is really bad, and honestly it works pretty well for getting your skin used to it without ditching the product.
What you can't do is go back to strong retinol thinking that once you're used to it things will be fine, because with sensitive skin that usually doesn't happen, it just gets worse. Build up frequency and concentration really slowly, even slower than what the instructions recommend. And be careful mixing retinol with acids or vitamin C at the same time, because that cranks up the irritation. Patience - this is a marathon, not a sprint.