Hi Sir My sex timings is not good

What are the causes of Premature ejaculation ?
1. unhealthy life style 
2. irrgular sleep pattern and general exhausting
3. stress and anxiaty 
4. lack of exercises 
5. unhealthy sex life 
6. unhealty diet 
What are the treatments of Premature ejaculation ?
following sexual intercourse techniqes that prevent or delay ejeculation and you can use some topical medication to delay the sexual sensation in your private area such as lidocaine  , on the other hand, some of erectile dysfuntion medication may help you to prevent premature ejaculation such as Sildenafil ( viagra ) , tadalafil (cialis ) and Vardenafil ( levitra 
, and you can consult your doctor to use some anti-depression medication which are prescriped by specialist doctor and cause delay ejaculation as a side effect such as  such as escitalopram (Lexapro), sertraline(Zoloft), paroxetine (Paxil)
General advices to increase your sexual ability :
1. following the healthy and appropriate way to do the sexual intercourse with your partner 
2. having a regular healthy diet 
3. doing exercises and give up bad habits like smoking and drinking alcohol 
4. avoiding stress and anxiaty sources 
- please avoid products or tools that claims it can increase penis size because its not medically approved and lack of long term effectiveness