Start by exporting your data from Amplitude. Navigate to Amplitude's "Export Data" section and select the data range and type you wish to export. Amplitude allows you to export data in CSV or JSON format. Choose the format that best suits your needs and download the file to your local machine.

Ensure you have a MySQL database set up and running on your server. If not, install MySQL on your server by downloading it from the official MySQL website and following the installation instructions for your operating system. Once installed, create a new database and necessary tables to hold the data you plan to import.

Before importing the data into MySQL, you may need to clean and format it to match the schema of your MySQL tables. Open the exported CSV or JSON file using a text editor or data processing tool and make sure the data fields align with the MySQL table columns. Adjust data types and formats as necessary.

Use the MySQL command-line tool to interact with your database. Open your terminal or command prompt and connect to your MySQL server using the command:
```
mysql -u [username] -p
```
Enter your password when prompted. Once connected, select the database where you intend to import data using:
```
USE [database_name];
```

For CSV files, use the `LOAD DATA INFILE` command to import data into your MySQL tables. First, ensure your MySQL server has access to the file by placing it in a directory where MySQL has read permission. Then execute the command:
```sql
LOAD DATA INFILE '/path/to/your/file.csv'
INTO TABLE your_table
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n'
IGNORE 1 ROWS;
```
Adjust the command parameters according to your file's format.

After the import, verify that the data has been correctly loaded into your MySQL tables. Run a few `SELECT` queries to check the data integrity and ensure that all fields have been populated as expected. For instance:
```sql
SELECT FROM your_table LIMIT 10;
```

To ensure continuous data flow from Amplitude to MySQL, consider writing a script to automate the export and import process. Use a language like Python, which allows you to schedule tasks, handle file operations, and interact with MySQL using libraries such as `pymysql` or `mysql-connector-python`. Set up a cron job (Linux) or Task Scheduler (Windows) to run your script at regular intervals.

By following these steps, you can efficiently move data from Amplitude to your MySQL database without relying on third-party connectors or integrations.