Safety considerations while travelling

An opportunity has arisen to travel across Ethiopia for 1 month. Ultimately staying in Addis for 2-weeks as my hub while visiting nearby areas. For example, Lake Bishoftu. However, there are areas which aren't advised to visit in the Tigray region . Does anyone local to the Tigray are know of the situation on the ground? I'm primarily wanting to visit Abune Yemata Guh, the church high up in the mountains in the Tiray region and Axum. Asides from visiting areas in the North. I'm aware of pre-cautions that need to be taken when it comes to pickpockets, even in Bole. However, my biggest concern is taxi drivers, because my Amharic is (tinnish tinnish lol). Is Ride the most reputable app, equivalent to Uber, and does it work in most major cities outside of Addis? Has anyone rented a car from a local dealership that you could recommend as well because $94 a day doesn't seem like a fair price? Even in a major city, such as Addis Ababa! Thanks for reading up to this point!