Replacing Unhealthy Habits

Trigger warning: LGBTQIA+ (kinda), relationships, marriage, addiction

My instinct, when I am stressed or depressed or something of that nature, is to seek out unhealthy comforts, which I'll not list here, but you can message if you would like to know.

Today, I am missing someone who, though they were only in my life for a short while, left an everlasting impact on my life, and I have had to cry in private to refrain from worrying anyone. In this situation, there is literally no one in my life who would understand and could help, so I literally have to weather this storm on my own. My temptations are many, and none of them are healthy for me or my marriage, but I don't know how to replace them.

Does anyone have any advice on how to get past these urges, and perhaps even how to grieve alone? If you do, please let me know, and if you need more info in order to offer advice, please shoot me a message. Please note the trigger warning above, as a deeper dive into the topic does pertain to the LGBTQIA+ community and the lifestyle connected to it. Thank you all.