stock market

today i want to open new account.it name is investment account.for this reason i have appointment with bank.form last mount i decided to work in stock market.every day i watch the market to find how is work.it is really exciting ,but it is really risky too. some times you thing you bought best stock in market and you waiting for lots of money but suddenly that one cames down and you loosed lots of money.but i found always you can buy safe stock like, yahoo or Google .in this situation you can earn lots of money but it is better than lose your money.so from tomorrow i will start stock market hopefully i will not lose money .however since i don't have any experience in financial major if some body can give me any advice i will appreciate to much.