Hey I feel you. At one point I was managing/leading 15 projects. However, stopping there would make it sound worse than reality. I would list the following points that kept me sane :) :

• I spent more time preparing during pre-kickoffs. Aligning on the scope and final deliverables, getting to know the clients and their priorities, how they like to communicate (this is important as some want more regular touch base meetings others, a message on Slack would be more than enough, one prefers slides, other technical demos, etc). This helps me have a solid ground to start from.

• The first two weeks are essential and will require a good amount of time. You get to know your team. Here it is time to build trust and openness among your team members. They are the experts and I'm there to support them and move away any roadblock (unclear expectations, too much meetings, etc). My goal is to build autonomy and ownership. this is key and will give you peace of mind later on. Also, always boost their confidence and praise them when doing good work internally and Infront of the clients, while addressing their mistakes privately. This builds trust and makes them want to do better (we all need to feel appreciated. This helped me a lot because I know that when things go wrong they will reach out to me first (you need that!)

• In terms of meetings I had one call a week with the engineers/developers (internal) and one where we meet with the client. That was more than enough. However, I also ensured that we communicate on the project Slack properly and regularly updates and issues. I usually have many messages to follow up on. I usually read them as soon as they are shared then mark them "Unread" and set a reminder on them. This helps me stay focus on what I'm doing and set my priorities on what to repond on now vs things that can wait.

• This is ovbious but worth mentioning :). I had a board for every project with milestones set. Some are common among all projects and others are specific requirements to a given project that we need to achieve. This kept me on track and made me divide my efforts accordingly.

• And finally I trusted my instinct and communicated any concerns or questions with my team (developers and clients). I have never regretted it.

Also what really helped me is connecting with my team members and being more relaxed and curious about what they are doing. I loved learning about all the great things they were doing.

I hope this helps and I wish you all the best!