Applying for PIP (depression/anxiety), but still currently working? Please help

I am very new to this, having not known much about PIP before or even the fact it can cover mental health conditions and/or for those still working.

I want to know if anyone has any experience or advice related to applying for PIP with depression/anxiety, particularly if you still work.

In short, I have had both depression/anxiety for several years and it affects a lot of my daily life. In short some things like the stress and panic associated with travelling have meant I've really cut down my in person hours and try to work online only as much as possible, feeling super burnout after days working and needing so much support from family, doing less work altogether as I don't always feel capable and even cancelling jobs etc.

I am concerned whether points like these will be considered valid, or if they won't care. Likewise, I am PHYSICALLY capable of certain things and of course every so often HAVE to do certain things (e.g. occasional grocery shopping, picking up a family member from town), and so am concerned whether these undermine the claim.

If you have any other general support or advice I'd really appreciate it.