I think I need a new heating element

Help! I think I need a new heating element…my dryer was fine yesterday, but the load I out in last night did not dry. The drum turns and the moisture sensor light indicates that the clothes are damp, so I know IT is working. The lint screen and the vent to outside are clean and free of obstructions…What do you think, and is this something I could tackle by myself?

Thanks for your time & any suggestions!

Lori