Thanks for your question. Performance fear can cause effect on sexual performance. As you have tried to modify your lifestyle but it was not of much help, I will not recommend you to use any performance enhancing pills from the internet. These pills may contain very low or high dosage of PDE5, which is compound found in Viagra. The usage of which is considered harmful, as it may contain contaminants like talcum powder, commercial paint etc., which are very dangerous. Some of the pills when taken may lead to sexually transmit diseases, so it would be better to consult a doctor before intake of any such pills. Then you can purchase it from a pharmacy or from a website.