I don't quite agree with you on some points and try to provide arguments on why I disagree.
1. Haven't tested that, so I have no comment on this one.
2. That's why you have to learn to play if you are just starting out and these are your first 10 days. It is possible to maintain all satellites + complete all tasks and process signals for the next day and even have some sleep and additional time to find signals for the next day (I usually do all tasks in half a day), you just have to know the way around organizing yourself (for example make a roadmap for yourself meaning when you go fix satellites, you check if there are any satellites from the daily hash task so that you simultaneously fix some satellites and gather hashes in one go, this is easy). Make sure you are familiar with sv.target command (it points you to the target satellite with red arrow on compass).
3. If you want to avoid hunger ragdoll, simply eat. You can buy yourself a crowbar and break all 'supply' crates, they have plenty of MREs inside, it will last you until the endgame even. Hunger is the game mechanics and this is the point. I doubt one would feel good and not faint if one hasn't eaten in a long time. Sleep and gas is easy to manage, just take time learning the game mechanics and management. One tip: while you work on signals, every 2-4 minutes you can go and use the toilet to get +5 stamina and also when you download/process signal, you can just go sleep to simultaneously do something and restore some sleep. It is simple as that.
4.Polarity and frequency drift might be due to the bad weather and this is normal and should be happening during rain/thunder or sometimes cloudy weather. Game mechanics as well. Actually first half of the game you don't really sit, this is bad strategy, you fix satellites and complete reports to gain some points and upgrade server stability and other stuff. When you upgrade server stability you will notice that servers break less and with higher break interval (they live longer basically). Of course you should collect signals, but from start first 1-3 days you probably will be asked to only send level 0 signals if you don't upgrade.
5. Just learn and try to find propery way for yourself on how to manage resources, its not difficult at all. In the beginning you have to do some work which if done properly, will be rewarding later.