Obviously, you need to discuss this with your doctor. Didn't anyone go over this with you before you left the hospital?
In any case, it sounds as if you are probably Stage IIa. That is an early stage, which is good. https://www.cancer.net/cancer-types/col ... cer/stages
Some people with Stage II CRC have chemo after surgery, called adjuvant chemotherapy, and many do not. It depends on a number of factors. You should discuss this with your doctor. Here is an article that discusses the issue:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4655109/
If you have been seeing a gastroenterologist, s/he might suggest that you consult with an oncologist to discuss whether or not you should do an followup treatment.
You should also get at least the basic genetic information about your tumor: is it MSS or MSI, KRAS and BRAF wild-type or mutated, If you don't know what these terms mean, google them.
Over all, your pathology report sounds very encouraging to me. Talk to you doctor, do research, and ask questions until you feel that you can calmly understand your situation. Ask a friend or family member to go with you to appointments if you need another set of ears to process information, take notes, or give you emotional support. Write down a list of questions you want to ask in advance. Don't worry about asking dumb questions: get what you need. At the same time, realize that there is always going to be some degree of uncertainty with cancer, so there may be some assurances your doctor cannot give you.
You can do this. Best of luck.