Help out!! Losing weight and getting Toned?

You can't shape your muscles really, you can make them bigger. The shape is determined by genetics, there is no such thing as toned muscle look . That's just muscular body with low bodyfat%. You can lower your bodyfat% by gaining muscle and losing fat. You wont lose muscle by doing cardio. Nutrition + Cardio = Caloric deficit = You'll lose fat.

Cardio won't burn muscle unless you are super lean, and even then you'd have to do it fasted, and not eat right after, and not eat during if it is more than 90-120 minutes. That being said, be skeptical of what the bros say at the gym, most of it is false.

The only way that cardio "burns" muscle is when you aren't eating enough each day and are also low carbs, and the protein you eat is diverted to replenish glycogen burned from the cardio before it goes towards building leanmass. Combined with lighter, higher rep sets that some seem to push for "toning", your body doesn't need to be as strong/big for lighter weights and you adapt to be more efficient.

So keep lifting heavy weights (in the 5-8 rep max range), and replenish your carbs after intense cardio the same way you'd eat some protein /carbs after a workout. The same window of increased insulin sensitivity exists for cardio, to replenish glycogen. Good luck with your training goals!