IMO, the odds favour you’ll join the 85% of newbies who blow their accounts, because they cannot manage the discipline, patience, and emotional control over a small account. Regard your 100 euros as a learning experience. Of course you could trade for cents, but that doesn’t work.
Your best approach is to demo account first for several months, while saving up for a minimum $500 account size when you feel comfortable you could manage it profitably.
Welcome Rick! Remember do not rush into trading with your real money. Focus on getting the required skills and practice on demo. Take your time, be patient and stay motivated as you go through the learning process. Good luck!