There could be so many things wrong here, so it's hard to know. Make sure that the enclosure is setup properly, that the heat/humidity are correct and then try again. I don't recommend handling your snake while it's not eating, since it's likely not eating due to stress. Assuming everything is setup properly, and you're not adding to the stress by handling it - then just try once a week and don't be too worried. When your snake is ready, it will eat. If you snake refuses to eat for 2 months, then you can start to "try things". Until then, just offer the thawed rat/mouse to your snake. If it doesn't strike, then leave it in the enclosure overnight. If its still there in the morning - get rid of it and try again next week.

If you need help with setting up your enclosure you can check out our site, we have a very extensive resources page with lots of videos (or just search this forum).