If you earn 8,000 per month and owe 300,000 for an online credit card loan, the repayment situation will be quite difficult. The following are relevant instructions:

1. Repayment ability: A monthly income of 8,000 yuan is relatively insufficient to repay a debt of 300,000 yuan, so repayment may become very difficult.

2. Interest burden: Credit cards and online loans usually have higher interest rates, which will lead to greater repayment pressure and longer repayment periods.

3. Debt scale: The total debt reaches 300,000, which is far more than 10 times the monthly income, which means that it will take a long time to pay off the debt.

4. Risk: If you fail to repay your debt on time, you may face overdue interest, damage to your credit record, and harassment from collection agencies.

It is recommended to check your own big data comprehensive credit score on Qingquan Kuaicha first. The higher the score, the greater the probability of loan approval. Additionally, consider the following ways to deal with repayment woes:

1. Increase your income: Find a part-time job or side hustle to increase your monthly disposable income.

2. Cut expenses: Develop a detailed budget plan to reduce non-essential expenses and prioritize debt payments.

3. Borrowing and refinancing: If conditions permit, you can consider applying for a lower interest rate loan to repay high interest rate debt. But be careful not to add more debt.

4. Debt negotiation: Communicate with creditors to seek possible repayment arrangements or renegotiate debt terms.

In short, having a monthly income of 8,000 and owing a credit card online loan of 300,000 is a serious repayment dilemma. The key to solving this problem is to promptly assess your credit situation and adopt an appropriate repayment strategy.