Running online experiments or remote studies can be extremely technical and daunting. But with the right tools, like PsychoPy - a Python package, setting up behavioral experiments can be less of a hassle.
PsychoPy is a powerful platform for the presentation of a wide range of stimuli in precise timing and is used extensively in psychological research and cognitive tasks. It provides a simple and transparent solution for running experiments.
PsychoPy has an extensive and comprehensive documentation that serves as a great resource for troubleshooting, finding guides, and understanding the functionalities in the program. It provides everything you require for designing and running experiments.
After you have designed your experiment using PsychoPy, the next step is to run your experiments on platforms like www.cognition.run, and collect data for your research. Analyze the data and draw meaningful conclusions from it. If you face any difficulties, forums like Cognition's community and StackOverflow are full of people ready to help you.
Lastly, it's important to reiterate that designing and running cognitive or behavioral experiments are complex tasks that require precision and attention to detail. Mistakes can easily creep in and the quality of your data (and consequently, your results) depends heavily on the quality of your experiment. Happy experimenting!