One new thing at a time is probably enough for most people most of the time. I once went on a trip with more challenging weather than I was used to and more challenging navigation than I was used to. But when I found no obvious way out of a surrounding circular wall of cloud, with controlled airspace above me and to the sides, and too busy worrying about the cloud to be certain where I was, the Luton controller was very helpful. The only time I've ever phoned a controller to thank him after I've got down. I could have coped with the weather or the nav, but both at once were a bit much on that particular day, and I really did need to offload some of the nav onto the controller. Yes the job he was actually being paid for was shuffling airlines around the controlled airspace, but if you need help ask for it and you'll get it.
So ILAFFT, but of course one of the lessons was that I should have stayed on the ground that day.