That's a good start. It will take awhile for it to really sink it that the full truth is the most important thing if you want to reconcile.
Your BW is in the early stages of trying to process all this information and is in a lot of pain. Make sure ALL of it is out and stop trickling! If there is anything else, tell her now.
It took me over a year to tell my BH everything and it was a tribute to my BH's strength and willingness to stick with me when he decided to keep at R with me. He was also a member here and got a lot of support from the other members. We were lucky and we worked our asses off to make R work, but we did it.
Have you thought about writing out a timeline for your BW? That's a good way to get everything out and to give some clarity to your BW.
Keep taking steps forward and don't lie anymore about anything. That's the only way you're going to rebuild the trust that has been shattered.
Are you in IC?