Panic when playing other tennis beginners

by Pierer Tan Wee Teck
(Sabah (Keningau))

I play tennis just for half year.

I noticed that many players think they are already a champion after playing for 6 months.

But I don't think so about myself.

Many people say my serve is very good and beautiful...

But when I play a match with other novice tennis players all my basics become really poor and my serve becomes poor too.

I don't have a coach and I can only play with a friend who is not that good in tennis.

So I can just play with the wall every time and learn from internet.

There are also no indoor courts so when it rains I cannot play too.

What can I do to improve my tennis in case of rain?

And why do I always panic when I face other beginner players?

How can I play better?