What’s something you completely changed your mind about?

OK, maybe then you can answer this. Asked multiple times in AI subreddits and people just say "these things are really easy to do" then never explain how and simply try to hide replies whenever anyone asks. This is a small list of general admin-y type things related to my work, or stuff related to hobbies such as putting on local nightclub events with friends - 1. Take a guestlist document for a club event and automatically send emails. The guestlist is a spreadsheet. Column A is their name, column B is their email, Column C is what type of access they get. Emails should then automatically be sent individually (no mass CCing or BCCing) and address them by name. The body should very depending on Column C, so for example if they're just some guy the DJ I'm working with met at the airport and they got general admission, it will say "go to the guestlist queue and give your name, please remember to bring ID" all the way up to important business partners or the like who get full AAA, where it might change to say "head to the artist entrance at the rear of the venue and ask for (name of AL on the day), do NOT join the main queue." 2. Make a list of all events relating to certain genres (for example, dance music events) happening in a certain area/radius between two set dates, taking information from places like Songkick, Skiddle, Ticketmaster, Resident Advisor, Bandsintown, etc and putting them into a spreadsheet with name of artist(s)/DJs playing, venue, and date in separate columns. 3. Take Ibiza Spotlight's event calendar for the following yet (normally finalised early Spring) and do the same as above. Spreadsheet with date, event, DJs playing, and venue. In date order. 4. Make a comprehensive tour itinerary and day sheets for a DJ's upcoming tour. 5. Automatically change a Google Docs document to personalise it for photographers/videographers accredited at a show/event. Quite simple changes - simply amends one part of a contract to include their name, and where they're allowed to shoot from, based again on a spreadsheet. It should then be saved as a PDF and sent to the photog it is personalised to as an email attachment, again their email is on the spreadsheet. Automatically mark it on the Spreadsheet as sent. 6. Create artwork for an event that actually obeys prompts.