I know what you mean, but it’s never too late to start. And also regular titles are healing in its own way, whether its wealth, dating etc. Every piece you put into the bigger puzzle again heals your faulty perceptions, and ultimately makes you more complete.
I started Khan solo in October last year after having a year of being thrown into the spiritual and healing path, and that was even before I started using subliminals.
I hear many say that 2020 was a shit year, but for me it was the most enlightning year of my life. It was like the beginning of a deep cleansing of the human psyche, and one had the chance to either resist it or to dive into it.
I must say that it was very smooth for me. Maybe St2 was a bit rough, especially the dreams. But I got used to the dreams last year when I experienced a lot of “The Dark Night Of The Soul”, so I’m not afraid of dreams anymore, instead I find them quite amusing 
I did one month on each of the three stages of DR. I’m about a month in on St4, and I must say it’s literally insane the amount of energy and the absolute feeling of emotional stability. I have not yet to try the Ultima though.
I definately recommend Dragon Reborn. As all four stages it is very all rounded when it comes to healing. As mentioned earlier I think I had a bit easier time due to all the dark stuff that came up last year.
One thing I’ve noticed when reading others journals with DR, is that they become so aware of all the negative things that been holding them back all their life, and also being able to reframe it, look at it and move past it. Very impressive!
Love bomb converted to Q is really smooth. It’s funny how I can feel all the different modules, and Love Bomb is together with Heartsong the strongest of them so far. I tried Sacred Heart last week together with Love Bomb U, that was crazy 