Moving and I’m scared

I’m 26 and have lived in my current place for 7 years. It’s a mobile home. It’s about 15 years old so it’s nicer but still has some fixes here and there. My mom owns it (she lived in it before I did but has never lived here with me at the same time) and while I’ve lived here I’ve always paid utilities and lot rent (lot rent has always been under $400 a month) so I’ve had it pretty good..but now shes wanting to move back to town and I’ve been wanting to move for awhile so we agreed she should live in it again..so my boyfriend and I found a town house we’re moving to about half an hour away. 7 years is a long time to live in your own place at 26 years old IN MY OPINION, so I’ve just been ready for a change. The new places’ rent is obviously more expensive by double. We can afford it but we’re going to have to just learn to budget a little better than we’ve had to living here. We already put a deposit down and everything and are set to move in March 1st..and as i’ve been packing more and more I feel myself already being home sick..I’m scared to death and keep going back and fourth getting cold feet. Everyone in my life says it’ll be okay and are reassuring that we can make it work. I think I’m just nervous about the cost being more, because I’m so used to this. I’ve been able to live here comfortably all this time and sometimes even only working part time I’ve been able to still afford it...that won’t be how it is in this new place. I guess it’s just a part of life. I’d really appreciate a pep talk or words of encouragement though from anyone else on here who can relate. I just hope we are making the right decision.