For a long time in my life, my methods were more on the negative side.
Although I had a good relationship with my parents, I was afraid to confide in them. I realize now that it wasn't anything they did, but rather was due to my over-imaginative mind (and TV portrayal of parents). For a long time bottled up my feelings. I acted strong. I bottled this in for weeks, or even months of the time until "exploded." Once in awhile, I'd either start violent bawling at the smallest though, or have a huge outburst or anger for the most insignificant issue. Of course, the tears trickled alone. My outburst didn't only affect me, but my little sister. I have 2 sisters, and didn't used to get along with the middle one. Everything she did just irked me. I constantly yelled at her, and guilt tripped her. Yes, it was toxic and is one of my biggest regrets.
I was just all around unhappy.
Throughout middle school and most of my highschool career, I was unhappy, but you'd never be able to tell just by looking. But sometime during maybe 11th grade I started to change my habits.
I started watching journaling videos and I was OBSESSED with them. As a kid I used to love writing so I took it upon myself to start journaling. At first, I just wanted to make pretty tumblr-y aesthetic journals, but I got lazy (lol) and just started scribbling my thoughts. Everything I felt trickled out of my fingertips and onto the pages. I'd write and write and somehow that made it a little better.
Flash forward now, 2nd year of college, and I am still struggling to cope with things healthily. But I am much, much happier. I am working hard at repairing my relationship with my little sister (thankfully she's forgiven me and we are much better). I learned to confide in others, esp. my mom. It wasn't so scary after all (but I had to hold my breath while telling her in one loong sentence). I still bottle up some emotions, and do have mini outbursts at times but it's not like it was back then.
I wish you the best in finding healthy coping methods for you, and thank you for allowing us to know something so personal.