Have to agree with Robert - scale your business down and work it part time while you keep your day job.
Most professional investors will not invest only $10K - they cannot get enough return on that small amount.
Most businesses that only need that small an amount - usually bootstrap their business - money from their personal credit cards, small personal loans based on personal collateral or asking friends and family for small investments.
If you can find a way to bootstrap your business, you will be much better off in the long run - and with less hassle. Most investors do not invest in business ideas but in proven management teams and as you stated, you have not done this before and have no traction with it now. Plus, are you ready to incorporate your business, hire a lawyer to review and issue your documents for the investor, hire a CPA, etc?
Most investors will take a portion of your business based on a pre-money / post-money value. Let's say that you business - as it stands right now - is worth $10K and you are seeking $10K (for a total of $20K after the investment) - then the investor has put in 50% of the value and would expect 50% of the company). But, your business is probably valued at $0 right now - thus, if an investor puts in 100% of the value - then he would expect 100% of the company.
You might also think about keeping your day job - get a peer-to-peer loan for the money you need - then use your pay from your job to pay the money back - all the while moving your business forward - part-time - until it can take care of itself and you.
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