what about trying split squats, doing one leg at a time?

Also why not try increasing the bench press but going a bit faster, then slow it down with each session until it's 4/4 again.*



*Yes I love these, why not try a drop set once a week or fortnight, do 7 reps with 12.5kg, then 7 with 10kg, then 7.5, 5, 2.5, 0kg. No rest between sets, get the dumbells all ready to go if you can. You'll be crying at the end in a good way :)