And now, in this second current job. I was promoted again as a team leader on my 6th month, again!
It's like "I did not chose the thug life, the thug Life chose me" LOL. I am a hardworker and good employee. I never imagine myself as a leader everytime I start up. I just wanted to work and to make the company happy.
Now, I will be 2 years in my current company. Im handling people who are all waaaaay older than me. (I am handling 9 web developers).
Recently, I get insecured, anxious and feel worthless. Especially when we hired a senior developer and, projects got out of hand due to lots of clients. I always feel tired and I feel that the team is not good because of me. Nowadays, i think about stepping down. I feel that, someone older than me (the newly hired senior developer, whose a decade older than me - to be specific) should be in my position. Is it right to think that way?
I honestly do not want to leave the company I am in right now. They are like a family to me. But these are what I feel lately in terms of work.
I distribute projects to the team always and always catch all the pressure. I work hard and multi task just to finish all our pendings. I am trying my best to improve the process in work (still trying) and improving communications. I am always doing my best, but feel underappreciated. My team does not know how I catch all the pressure. Is that even right?
How can I be effective and not feel this way? And how do I say if I am still doing the right thing for my job?
I am confused, I sometimes want to give up. But sometimes, I still want to do my best and go on. But a little failure and disappointment gets to me already.

I always think that maturity is not based on age, but I still feel insecure sometimes too

Please enlighten me. Any words would be appreciated.