I have plans to start a big project in the end, I want to make it my base, and have all my items in it, But im worried that the end will be reset and i will lose everything.
It's best not to build anything that needs more then average effort no your own part. Especially since the end resets on a semi-regular basis, it's just a waste.
It's not a good idea to have base in the end. But, If you really want to, here's a few pointers: 1. Make a base and put it on a bc blueprint so it's easy to rebuild when the end resets. 2. Instead of keeping your items in the end, don't use storage disks. Instead, put a bunch of enderchests in the overworld (even thou they store your items in the end) and in the end then stick storage buses on them in the end that way you can use them for storage and if the end resets, you don't lose your items.