Just pick them off. Don't focus on one single storyline. Once most of those roll off, you'll have like 3-4 tasks at the maximum at any given time.
Also, as a heads up, ONLY use fast travel by map AFTER you have the MC go outside whatever building they are in at the time. Otherwise, you may miss opportunities to open locations or trigger tasks (You should be able to open the mall within the first 3 days of in-game time, as an example).
There is no walkthrough - that's what these are for. If you need handheld, look up youtube playlists for the game. One of the popular that came out after the update that revised the gameplay was by TGame (
You must be registered to see the links
). Although they don't show the task list on screen, after the first couple of videos the tasks are timestamped from the description box below the video.
I post my FAQ on a regular basis (latest is just 6 posts before yours -
#30,940 - at the bottom of the last page). One item I haven't added (but I guess I should the next time) is about the plumber/3 cameras task: See -
#27,272 and
#26,056.
Finally if you do get stuck - search the thread before asking your question. At least 95% of all gameplay questions have already been answered dozens of times.