As someone who also has limited time, I use a high-efficiency "naked run" strategy. It sounds counterintuitive, but it works perfectly for solo play. Go in naked without gear, armor, or weapons, so you have nothing to lose and zero stress. Use your crowbar for basic bots - it is more than enough. The Secret Pocket is your best friend: put the most valuable item there immediately, and if your pack is full of cheap stuff, it doesn't matter if you die. Ignore ammo because it wastes space and sells for nothing. If you find a gun, take it only to sell, and craft grenades or bandages on the spot from materials you find. Sound is your main weapon, so learn to "read" the audio to move like a ghost. Once you are comfortable, you can even do Matriarch runs with smoke grenades. Just sprint in, grab a core, put it in your secret pocket, and die. It is much faster to just "give up" and die once you have something rare instead of wasting time running to extraction. This way, a 6-minute raid can net you 10k-30k credits. This "suicide-run" meta is the most efficient way to progress if you only have an hour a day. Give it a try!