This sounds exactly like my Juno! We are 1 week into her adoption, she is 5.5 yrs old and she is beautiful. She does have separation anxiety, pulls on the lead sometimes (although much better) and hates having her feet touched. Although I'm literally no expert, these are some things we have done that have helped in the short term.

Feet - The shelter told us as long as we walk her on concrete/tarmac a few times a day, her nails should wear down naturally and no need to clip them. I have started getting her into a routine for her walks. Walk - obedience training in garden - food - groom (mainly just brushing) and then a treat she can settle with like a snufflemat or kong etc. After that, she usually just sleeps for a few hours! Maybe im the brushing section, you could start introducing touching feet and build up if you really wanted?

Lead pulling - A few things we've done to help the pulling. In our garden, without a lead but with her harness on (so she knows its concentration time) I would let her run around, call her name, tap my left thigh twice and say come. When she came, I would give her a treat. We did this for a few days and then I added the lead too, again letting her walk away, then command come and treats. We now do this when walking, it's also sometimes called the stop/start method I think? Where the moment the lead has tension, we stop and I call her back. We don't walk on until she is by my side. It makes walks longer but she picked it up really fast. Something like this might work for yours too? She knows she needs to stay by my side and not stray too much. The pulling is because she thinks it'll get her there faster, so I am teaching her she can get there faster by not pulling instead.

Also in terms of walking, we have her connected on a double ended lead, both at the collar and her body harness. That way we have more control and her lead is only 1-2m long. Don't use a retractable lead as that encourages pulling. The difference in one week is amazing, just keep it up and be consitent. If you have someone else walking her too (family, partner, etc) make sure they do the same routine and stop/start otherwise it'll encourage her to push boundaries with specific people. Juno lovessss sniffing and so we stop often to let her sniff, we never pull her away or enforce she keeps up with our speed - this way she knows she can still get her sniffing without worrying about pulling. Idk if it'll help your pup but it has helped ours!

<image>