I want big penis

What is the normal penis size in relax and erection time :
1. erection : 8-18 cm
2. relaxtion : at least 6 cm
How to increase penis size ?
- the only options to increase penis size in effective ways are the surgical options , which are :
1. there is a surgical option that may increase you penis size about 4-6 cm by cut out the internal tendons that connect pelvic area to your private area and leave bigger space to penis to increase 
2. there is a plastic surgery that increase penis size by implanting silicon implants in the upper areas of penis goes into the internal area of penis and it increase penis size around 6-8 cm
What are the costs of those surgeries ?
1. first surgical option ( cut out the internal tendons ) : 2000 - 3000 $ or more 
2. second surgical option ( implanting silicon implants ) : 10000 $ of more 
What are the treatments of Premature ejaculation ?
1. following sexual intercourse techniqes that prevent or delay ejeculation 
2. you can use some topical medication to delay the sexual sensation in your private area such as lidocaine 
3. some of erectile dysfuntion medication may help you to prevent premature ejaculation such as Sildenafil ( viagra ) , tadalafil (cialis ) and Vardenafil ( levitra 
4. you can also 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)
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