Comprehensive RTweet Guide in R

I'm looking for a detailed guide on how to get tweets using the RTweet library in R.

Key points include:
- Explaining the setup process of the Twitter Developer Account since I'm facing issues with access
- A detailed, step-by-step guide on how to leverage the RTweet library for tweet lookup and analysis
- Troubleshooting guidance for known issues

Ideal skills:
- Proficient in R programming language
- Strong understanding of the RTweet library
- Experience with Twitter Developer account setup
- Ability to explain complex concepts in a simple manner
- Troubleshooting experience with the Twitter API