Static Billboards or Mobile Truck Advertising

Hi Guys,
I hope all of you are doing well and fine.
I have tried different advertising strategies such as static billboard advertising, radio advertising before launching my brand but I failed terribly. I am not able to understand why I am failing and not able to reach the target audience. I have recently heard of the mobile truck advertising and found it interesting as well. Do you guys think that advertising through mobile trucks can work for creating brand awareness and can help me to generate leads?