Build a MS Word 2 page template

Create a Word template This Legal size landscape document prints double sided onto 2 pieces of paper that is folded in half. The outside page is a church worship guide and inside is an insert sheet. When I used Publisher, both pages were in one file. With Word, I do not know how to manipulate each page with different formats or columns to have in one single file. First piece of paper is Page 1, (of 4 individual pages) is a photo that changes weekly and has a church infomation. Page 2 and 3 has words that flow from one side to the other side depending upon the amount of words but it never exceeds page 2 and 3. Page 4 is the back cover and that information rarely changes. The 2nd piece of paper also has 4 individual pages used as an insert to the first piece of paper. Page 1 has minimal changes weekly, pages 2 and 3 may contain photos or typed articles. Page 4 has minimal changes weekly. (1)I am unable to make the articles in Word stable. When I change info weekly on insert pages the images disappear and articles are distored. I am unable to remove the origional typed calendar and current copy has text box calendar ontop of it. When I try to erase the typed text under the text box, other information and text boxes get erased as well. (2)I need to print the final copy each week as well as convert it to a PDF to email. (3) Is there a feature to make the calendar easier to change weekly? (4) Is there an easier way to choose changes (dates and names) within the liturgist and acolye box? maybe a drop down choice? (5) Have both sheets of paper in one file to print. (6) any other suggestion to make this transition any easier would be appreciated. Just a bit of background, I am pushing 70 years old, Grammy of 8, and I have used MS Publsiher for everything. I do not know this Word program and I have tried Canva. I have used AI instructions to build this template and still can not master it after a month of daily effort. I have little money (widow on fixed income and this part time job) and work for this church that is operating in the negative. Please help!!!! I will attach a Word for review. and I will also attach an older Publisher file .Thank you.