There are so many references that will help you to understand what bitcoin is, try to find it in google , youtube , blogs, or many other website that explain about bitcoin, the first time i knew about bitcoin, i also got a difficulty to understand, i tried to learn it step by step until now, keep learning buddy
You can easily pick up anything about bitcoin using new technologies , there are videos that shares about the information on using and investing on bitcoin . Sometimes its hard to understand but if you're really determined to learn you will got it easily