declare a mayday and let a radar unit talk you to either better weather or as a last resort a surveillance radar approach, do not try to fly an ILS with virtually no instrument skills.
+1, in fact agree with all the above.
Back in the day when I taught Instrument Flying (IF) the first "let downs" taught were basic cloudbreaks ( initially a basic straight line descent to MSA, later on turns were allowed...), then moved on to survellance radar approaches (SRA), then on to PARs (!!!) and only then with perhaps 150 ish hours flying under their belt, and more importantly maybe 20+ dedicated IF hours "under the hood" were the students taught to fly a basic (raw data) ILS....now it no doubt can and is done sooner these days in the commercial training schools which have a higher emphasis on procedural IF than where I taught but nevertheless flying an ILS safely really requires a solid grasp of IF skills and a good solid IF scan...if you don't have that you will more than likely end up at 45 AOB or more, or stalled/overspeeded, or worse, due to chasing the ILS needles...
Having a go in a "sim" at an ILS is fine, but IMHO you'd be playing with fire as a low houred hour'ed PPL even thinking of attempting an ILS on the aircraft in marginal conditions. In the real world if you do get stuck above weather then as has been recommended, a "mayday" and hopefully help with a cloudbreak is a much much safer bet for a low hour PPL then an ILS.