Hi Turquoisetree247,
I'm just another lost soul, and I don't know you but reading your post I can relate to having an "off thought indulgence that's not of my 'normal ' self".
If I write too much, main point is believe we're human and with some assistance in many forms, we can attempt to change our thoughts or reactions to them.
Yes therapy can help if T is right fit and affordable for your situation; there's also other avenues out there.

For example:
I've laughed at some very crude things, and joked in ways that in another time of me- I couldn't even find that humor or train of thought.

There are times I realize this and beat myself up, realizing that I indulged in such thoughts and behaviors-but as i grow i realize that
1) I did not do any action of crude thought and
2) i am mostly a loving and positive person, and if I am bothered with that behavior and thinking patterns to try to curve it next time if it comes up. (Not always easy and still working on some of my own)
3) lastly we are humans with thoughts and feelings that come and pass.

Here's another, perhaps triggering example


Though I must confess, I have some labels that the above are - indicators I suppose- to help support those dx's.

Therapy did help in conjunction with my participation, with the right T it helped even more! and of course I believe if more time with the tight T it would do well.

Reading also on topics and continuing to practice some coping methods.

For example, self talk- practicing positive self talk can do wonders.

Also perception on the thought, ... trigger example has a moral- if I continued to believe I was a horrible person for just the thought, then I may never would has realized it was a red flag for me and why.

Best wishes and apologies if I rambled too much or misunderstood

___
One last thing

I have done some thing that some people would not find forgiving, and it is some thing that I wrote on PC that I felt that many disagreed with, and I talked to my therapist at the time - T actually helped me a lot on coping with what I did.

While I still struggle with this, I remind myself that I did what I did and must live with it- that perhaps I have rationalized it; but there is no sense in beating myself up on it; and to try to learn and move forward.

Self forgiveness is a big thing with moving forward, even with thoughts but with actions that one regrets and puts themselves in misery for.