The best way to check whether you really want to become a researcher is to spend some time at a research laboratory and get a feeling of life at the bench.
Most laboratories will be available to receive inexperienced researchers for training periods of different lengths and formats. Moreover, some types of training are eligible for funding.
Visit the websites of recognized research institutions near you to see if they provide training opportunities.
The first step in your search for a laboratory to start your research is to check the list of available laboratories provided by the institution. Look beyond the name of the lab or the title of the project and take some time to get to know a few laboratories through their webpages.
Remember that while subjects you have already taken at the university might seem more interesting at first, other unfamiliar subjects might be equally stimulating.
After selecting a few labs, contact the laboratory coordinators to ask for further information. Be specific in your questions (e.g. how many hours per week are you expected to work for, who will you work with, what type of things can you learn,…). If possible, schedule a meeting to discuss your options.
See also how to get started in research at ITQB