So, I want to ask this before continuing, have you reviewed where the mistakes and shortcomings are for each closing book at the end of the year? If there is, I think it's easy to read and immediately revise where the error lies and minimize it. If it's taken for granted, the weak point will grow and eventually jam the business you've been running. Income does not match expenses where the fixed costs you have to pay each month.
If we're noticing that we're not earning for months then we should enhance our business plan and create a more effective business strategy. We must figure out our business's mistakes and weaknesses and try to find ways to do better.
In case we've done these things and we're still not making any profit, then we better decide weather to stop or to continue. 3 years as for me would be too long and it will be a big waste of time and finances. It might lead to total bankruptcy once we wait that long.