#anyway — great audiodramas! i highly recommend them! especially 'out of time' (with four) and 'wink' (with six)

[catabasis]

i can't stop thinking about the Out of Time audiodrama miniseries, where the Tenth Doctor (during his time travelling alone after Journey's End and going through his Time Lord Victorious arc while running away from his death) encounters the Fourth, Fifth and Sixth Doctors, and during his adventure with Four, Ten almost commits genocide against the Daleks again, only for Four to stop him just in time.

transcript of the scene:

TEN: (to the Daleks) You had a star exploding through your time corridor. If he [Four] hadn't stopped me, it might have reached Skaro.

FOUR: I had no idea what you were doing. I simply covered for the temporal calculations ticking through your mind. If I'd known...

TEN: A good friend of mine once said I needed people to stop me. But I get things done on my own.

FOUR: I shouldn't need stopping. Other people should be what keeps us going.

TEN: Maybe I thought that once back when I was you. What keeps me going now are the likes of them — Daleks: the worst things in the universe. There are so many out there, you've only scratched the surface. I never asked myself: have I the right to do what's needed to beat them? You know what I think now?

FOUR: What?

TEN: Yes, I do.

at the end, when they're saying their goodbyes, Four is well aware that there's something terribly wrong with Ten, and he gives him some advice:

FOUR: What you said back then, you don't travel with anyone?

TEN: Not anymore, no.

[...]

FOUR: I don't know what's happened to you, but if I may offer any advice, and if you'll listen, I'd say try and face the future with hope. Find more friends. [...] Goodbye, Doctor. Take care of my future, won't you?

TEN: I'll ty. Goodbye, Doctor. [While Four leaves] One more party. Destiny can wait.

and this narrative of a previous incarnation noticing that Ten isn't doing well is also touched in Ten's adventure with Six, where they have this exchange:

SIX: What are you afraid will happen if you pause for breath?

TEN: That there won't be another.

SIX: Take care of yourself.

TEN: And you.

it's so heartbreaking, but also very sweet, how these previous incarnations have no knowledge of what their future self is going through, but they still know that there's something wrong, and so they worry about Ten and want to help with at least some advice and words of encouragement. i like to think that these encounters with his younger selves also influenced Ten if only a little bit, and gave him a bit more courage to ultimately face his death.