Hello Cool Friend! I can try to address this, I own an indoor plantscaping business. The reality is, herbs inside do not do as well as those grown outdoors. It's worth a try though. Yes, you can pot a variety of things - like oregano, thyme, marjoram, etc. - in the same container. Try not to crowd them too much and put in the brightest spot possible. Use well draining soil and maybe some drainage rocks in the bottom of your pot. Watch the water, neither too dry or too wet. As they grow, prune them back so they don't get too leggy. There are some deals on herbs in 4" nursery pots to be had at some big box stores and grocery stores. Wishing you luck and I know what you mean, fresh herbs are so tasty in cooking and salads.