time to buy

My biggest mistake is to buy speculative n penny stocks that I’m not familiar with. Followed by the next biggest mistake is to keep average low instead of cut loss.
In the end the counter was delisted from SGX because the liabilities and debts is much more than the assets. They could not find any investors to buy out fhe company. The stock name is Technics Oil & Gas.
I lost about Sgd $30,000+. Now I will Never buy penny speculative stocks n never keep average down.