Trying and failing is okay. Experimentation is encouraged. Here is a list of things to experiment with:
- Foot position- either a little wider or a little narrower
- Toe angle- either pointed out a little more or a little less
- Grip- either a little wider or a little narrower
- Bar placement- between high bar and low bar there is room to experiment
- Bar type- try dumbbells, barbells, trap bars, safety squat bars, EZ curl bars, etc…
- Rep ranges- more or less reps
- Sets- more or less sets
- Lifting tempo- go a little faster or a little slower at certain points in the lift
- Machines- break up the monotony of only barbell work
Training is an investment of years. There are lots to try.