First decide why you want to buy shares - For the dividends, for capital growth, for an overseas holiday, a safe retirement? This is the most important part of your journey. Be patient. Do this part properly. If you don't know where you are going, how will you know when you have arrived? Worse, how will you know not to stop three feet from the goal line?
Then start studying - fundamental investing, and technical investing. Be patient. You should study both, regardless of which way you think you will end up investing. Prepare your exit strategy - i.e. know when and how you will terminate your investment, including the necessary stop-losses. Then you should simulate trading/ investing, until you make profit reasonably regularly. Be patient.
When you actually commit money, be prepared for completely different emotions to when you were simulating. Therefor only use about 1/10th of what you are willing to invest, in any one particular deal. Be patient. Stick to your exit strategies. Be patient. Do not be greedy, i.e. know that you will not time your entry and exit perfectly. Otherwise you will kill yourself with recriminations. Be patient.
And enjoy, it should be fun. And it will be fun if you don't over-commit, learn before you jump, and be patient.
BTW, over the long term, the surest way for your money to lose value is in a savings account.