First, log into your ConvertKit account and navigate to the section where your subscriber data is stored. Use the export functionality provided by ConvertKit to download the data. This usually involves exporting to a CSV or Excel file. Ensure you have all the necessary fields you want to transfer to your MySQL database.

Set up your MySQL server if it's not already running. Ensure you have the necessary privileges to create databases and tables. Use a MySQL client like MySQL Workbench, or the command line, to log into your MySQL server.

Once logged into MySQL, create a database to store your ConvertKit data if you haven't done so yet. Then, within this database, create a table that matches the structure of your exported ConvertKit data. Define the columns and data types appropriately, considering the structure of your CSV or Excel file.

```sql
CREATE DATABASE ConvertKitData;
USE ConvertKitData;
CREATE TABLE subscribers (
id INT AUTO_INCREMENT PRIMARY KEY,
email VARCHAR(255),
name VARCHAR(255),
created_at DATETIME
-- Add other fields as necessary
);
```

Open the exported CSV file and clean it up for any inconsistencies or unwanted characters that might cause issues during import. Ensure that all the data types are compatible with the table structure you've created in MySQL. Save the cleaned file.

Use the MySQL `LOAD DATA INFILE` command to import the CSV data into your newly created MySQL table. Ensure the CSV file is accessible by your MySQL server and adjust the file path accordingly. If you're using a local instance, the file should be on the server machine.

```sql
LOAD DATA INFILE '/path/to/your/exported_data.csv'
INTO TABLE subscribers
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n'
IGNORE 1 ROWS; -- Skip the header row
```

After the import, run SQL queries to verify that the data has been correctly imported into your MySQL database. Check for any discrepancies or missing data. It’s also a good practice to verify the number of records to ensure all data has been transferred.

```sql
SELECT COUNT() FROM subscribers;
```

If you plan to transfer data regularly, consider writing a script in a programming language like Python or Bash that automates the export, cleaning, and import processes. You can use libraries such as `pandas` in Python to handle CSV files and `mysql-connector-python` to interact with MySQL.

```python
import pandas as pd
import mysql.connector

# Load and clean CSV data
data = pd.read_csv('/path/to/your/exported_data.csv')
# Perform any data cleaning operations here

# Connect to MySQL and insert data
connection = mysql.connector.connect(user='your_user', password='your_password', host='localhost', database='ConvertKitData')
cursor = connection.cursor()

# Insert data row by row
for index, row in data.iterrows():
cursor.execute("INSERT INTO subscribers (email, name, created_at) VALUES (%s, %s, %s)", (row['email'], row['name'], row['created_at']))

connection.commit()
cursor.close()
connection.close()
```

By following these steps, you can effectively move data from ConvertKit to a MySQL destination without relying on third-party connectors or integrations.