I never expected so much advice and support! Thank you all so much!

I never expected to receive so much advice and supportive comments! Thank you all so much! I apologize for not being able to reply to everyone individually, but I have liked all your comments. According to local farmers, this land used to be a paddy field, and the irrigation pipes are broken, which is why the whole area is in such a muddy state. Also, because it has been abandoned for many years, the roots of the weeds are particularly deep, and I was told that reclamation would be difficult. I only have a small tractor for now, so I decided to start by tilling shallowly, planting easy-to-grow crops like sweet potatoes, and starting from soil preparation. The tractor is still stuck in the field, but I will try again based on the advice I received from everyone. If that doesn't work, I plan to ask a neighbor to pull it out with heavy machinery. Through this experience, I learned that you shouldn't rush and that it is important to make a solid plan. It seems there is a support system for new farmers in Chiba Prefecture, so I plan to go and consult with them to see if they can help me with planning.