Now that you are earning a regular income, think to protect yourself in order to support yourself financially, even during bad times. If your employer doesn’t offer you a group health insurance, it could be wise to extend the coverage under social security by getting your own health insurance policy.
Don’t forget the family insurance. As long as you lived with your parents and had no income, their family insurance covered you for damage accidentally caused to third parties. Now it is not the case anymore and you have to have your own family insurance.
And even if it seems so far from you, think now to build up a supplementary personal pension. There are several products of supplementary pension and, for each product, you will benefit from a tax advantage. Good to know for your first tax return!