If you're new to strength training and seriously want to improve consider the following advice:
Train the 3 big lifts 2x a week (squat, bench, deadlift).
At the start of the week, you should have some sort of max effort day
i.e. for bench 10 reps on the bar, 10 of 40, 7, of 50, 5 of 60, 3 of 70kg
The idea here is to build up to a big weight (for you obvs) for 2-3 reps. Then drop the weight for your working sets, you need to aim for higher weight, lower reps for strength training (a strongman favourite is 5 sets x 5 reps)
At the end of the week, your second day should be a day that trains explosiveness. There are various ways to do this. You should also switch up grip, if you pull sumo deadlift, pull conventional. For bench, switch to a close grip etc.
To train explosiveness, 3 great ways are:
for deadlifts, do pause deadlifts (hold the bar for 2 seconds just below the knee, then finish the lift)
for bench, pause the bar on your chest for 2 seconds before pushing it up (also can use bands for the bar)
for squats, do tempo squats, 3 second descent, 2 second hold at the bottom, 1 second on the rise up
You should only be doing your warmup sets and your 5 x 5 sets (or 4x4, 6x6 whatever you prefer) on this day and you shouldn't be pushing for your big double or triple