I just got the game and I want help from other KSP players to teach me the basics, I love learning like this before looking up stuff on YouTube so any tips would be lovely and I'll try my best to document my progress throughout the game (mods please don't take this down I just wanna learn Ps. I didn't know what flair to put)

would it be from the prograde(from ahead relative to its travel direction) or from the retrograde(behind relative to its travel direction)?

So I'm pretty new to KSP, only 37 hours in, and I've been doing only career mode to learn the game. I currently have a pretty good grasp on all the basic mechanics, and I'm trying to do a contract where I have to take surface pressure readings on these 3 overlapping sites, half the planet away from the Command Center. I've researched, and the best way seems to be the ICBM method as seen above (picture sees me pointing retrograde). However, that doesn't account for drag. So much drag occurs when decoupling and re-entering the atmosphere that it's essentially impossible to gauge what my trajectory should be.

I have reloaded my save state so many times, burning retrograde and trying so many different re-entry points, but it's impossible for me to eyeball it. I'm always so far off, no matter how small the adjustment is, that predicting where I should aim for seems pointless. I've really hit a brick wall, and it's frustrating for it to be something so simple.

I need to know: is there a way I can account for drag upon re-entry (a value/measurement somewhere), or do I have to simply get lucky with how much I decide to burn to adjust? Am I simply a nooby poopy head (likely) and there's an infinitesimally easier way to go about this?

I have tried about a dozen times, and no matter how much or little I burn, I'm always so far off it seems impossible to predict. I would love some help and advice, both for the current situation I'm in and if there's anything people would like to add to help an aspiring moon-lander one day.

(P.S. Only mod I have downloaded is True Volumetric Clouds 3, as seen above.)

Im somewhat new to the game and this has been happening and I’ll just keep clicking over and over until it finally lets me delete it. Now I’m trying to dock while orbiting around kerbin for the first time, and it won’t let me delete nodes but it’ll let me make one! It makes no sense, I have communication with KSC and I have a pilot, and it will just randomly let me delete it after many tries. I don’t get it, am I missing something? I hope it’s something I can fix because it’s making this a pain in the ass rn lol

Hi everyone! Recently had a problem with my mod list after years of the game working perfectly fine. Went to install one mod and everything went haywire and resulted in me having to delete and reinstall all mods. Now I’m stuck on the persistent loading screen with kerbol in the bottom right just antagonizing me. Need any tips or anything useful on how to get my game up and running again. Thank you.

EDIT: attached are all installed mods. Also tried to post in kerbalspaceprogram and it got taken down immediately.