I'm sorry you're missing your old therapist.
I think the journey of healing is the ''point'' as I think you said. I personally do not understand why some professionals think they can ''treat'' (or not...) and then ''discharge'' in 3 months. I find it sad. I hope the therapist is compassionate and well informed! I do not think you need to feel guilty for venting to a therapist, that is what they are paid for, to listen.....