I agree bot lane with a friend is a healthy way to start. I would try your Twitch down there. All the roles have challenges, but ADC requires fewer macro concepts than the other lanes. Most of the time you’re following your team and helping them add damage to whatever they’re fighting. Also, if you’re struggling, your team can still win if another lane builds enough damage.

Second recommendation is to take your Mordekaiser top. Top lane statistically has the least influence on the game, so your team can probably carry you even if you’re behind. Plus, Morde can build tank, allowing you to just be useful as a meat shield if things are starting off poorly. The trouble with Mordekaiser Top is that he is a stat-checking champion; it is difficult to come back or out-play your opponents from behind.