Installed software usually works for all users unless it specifically requires (or has been intentionally configured for) root only.
I recommend that you create a new user (try the "adduser" command, and follow its instructions) and give it a try. Whenever some task requires root privileges, you can change to root by using the command "su" and typing the root password when asked, or you can execute single root-only commands by using "sudo", though depending on your Linux distribution that last option may require some setup (try to learn about "visudo").
Performing your routine tasks as a normal user instead of root is something everybody does without much hassle, so don't worry about it; any problems you might find will probably be easy to solve. Good luck.