Support player trying to learn tank

Hi everyone,

I am a champion support player who recently finished tank placements for the first time! I placed emerald 4, and I’m currently sitting emerald 3. However, I’m actually having a hard time. I thought my game sense from playing support would help me on tank, and it does but also doesn’t. Don’t get me wrong, certain fundamentals that are universal (ex- cover usage) I think I do good on most of the time. But when it comes to tank specific macros I genuinely have no idea. Like when things are not going well on supp I usually know what adjustments I need to make, most of the time on tank tho I don’t know.

Also, I feel very stuck some games, like I am taking all this damage and all these cooldowns, yet nothing is happening. I’m so used to on support/dps going on off angles to help counteract this, but im on tank: my whole purpose is to sit main so everyone else can off angle freely. I do try to off angle when I can, but at the same time it’s not always possible. I’m in emerald so you can imagine a lot of people r not using their angles to their advantage and just sitting behind me.

I did an unranked to champ on supp earlier this season and it was blatantly obvious how different champ tanks vs emerald tanks play. I know this, yet I am not able to execute what I see in my champ lobbies.
Any words of advice? Thank you guys :)

Regarding what tanks I play, I kinda circle between all of them, but diva is definitely my best tank. I will probably narrow down my tank pool but I just want to see who is fun for now.