Any advice for introverts?

I am also an introvert and starting over.

I don't think anyone can be put into a introvert/extrovert box and we are all on a sliding, constantly fluid scale.
Maybe you feel or act more introverted than others most of the time, but I don't think that is who we are, anymore than our mood.

You can get ideas from friends, support, solutions and understanding. Counting can sometimes not be understood fully by your family, or perhaps you just need somewhere to vent frustrations.
Being nice to you friends and having them be nice to you, helping others makes you feel good and believe you can be part of this getting healthier community.

I'm an introvert, and I prefer online communication. It's easier for me and I don't have to look people in the eye! ^_^;

There's a lot of good advice on here, as well as a lot of bro science and bad advice. I did a LOT of lurking when I first started, and learned a lot about my process. Thing is, everyone has a different process for losing weight. What works well for one person won't work for others. Our bodies are all different, so that's normal. Looking around at what other people have done that worked for them is a good way to get ideas to try for yourself. If it works, awesome, if it doesn't, that's ok too. Just take advice with a grain of salt and research everything you can. Look for peer-reviewed scientific articles for your research, not random news articles. (though, random news articles can give you different points to start from) You can talk to us, we don't bite unless asked! ^_^

I have no idea if I'm an introvert or extrovert, all I know is that I find it helpful to have "friends" who'll like or comment on the updates I post. I'm not an "OMG that's awesome amazing fantastic xoxo let's do this woohoohoo!!!" kind of person but I'll like a post or comment on an update when I see them, because it's nice to have our achievements and/or struggles acknowledged. Like others have said - for the most part no one IRL cares about our calories or macros or methods of eating. It's beneficial for me to have somewhere I can come, talk and have people be interested or at least willing to engage. And it's on my terms.

I learn things I wouldn't have even known to web search. For example, maintenance break . . . I didn't even know that was a thing until yesterday when I saw it on a forum post. But, I suspect it, a maintenance break, would have been very helpful to me a couple years ago when I hit that 6 month plateau. I also find group challenges motivating, so there's that for me.

A virtual network is more beneficial in many ways to real life. For many of us whose real life friends have conflicting goals and needs it is difficult to find that mutual motivating element when it comes to working out and eating within a budget. Being introverted does not equal isolation by any means and we still react to positive and negative influences.

Find a group of people you identify with and stick with them through the highs and lows. Allow them to challenge your biases and beliefs and learn from one another.

Big ol' introvert here. What I appreciate most about my friends list is their consistency. They don't have to say much of anything, and I don't really need outside advice or encouragement. And I rarely post anything of note beyond just logging. But seeing the ones with year+ long log-in streaks, grinding it out in my feed, day after day, putting in the work of being fit - that's helpful.

That can become your peer group for this part of life, and we know from studies that the quality of your peer groups is very important.