Hello dear,
Production of sperm occurs at its own specified rate, which is not influenced by the frequency of sexual intercourse.
So, performance of intercourse daily will not decrease the 
sperm count.
Regarding the problem of 
Premature ejaculation, it is mostly associated with stress.
Since you have got married recently, it is very normal to be concerned whether you will be able to satisfy your partner or not.
But the more you think about all these, the more you will stress yourself out.
So, get rid of such thoughts from your mind and keep your mind relaxed.
Get to know each other well, share your thoughts & feelings.
Other than that, you need to make certain modifications in your diet & lifestyle:
1. Have a diet rich in fruits, vegetables, fish, nuts & honey.
2. Avoid fast foods & lipid containing diet.
3. Avoid 
smoking & alcohol.
4. Keep away stress, think positive.
5. Exercise regularly & practice meditation
These measures will be helpful in building your confidence & remove the 
anxiety.
One more thing, kindly do not get influenced by any 
over the counter medication which claim to increase the size of penis or improve performance...it may be harmful.
Take care.