The downtime could have been much shortened if you had properly setup and _tested_ disaster recovery steps. Create a full fledged separate staging system which you can bring down and recreate and periodically test various failure modes + document all detailed steps of system restore etc.
Also I would suggest to think about the business long term and seeing if you can increase the revenue enough to enable you to hire a part-timer who can be of great help in case a similar event happens.
We are also a small cloud solution provider (we focus on ML API's) and over the years it has become clear to us that when you use cloud hardware (either dedicated or virtual), from time to time the outages periodically happen. RAM, HDD or other parts of the hardware just can malfunction anytime. So this is something which 100% needs to be taken into consideration when running any high availability online service over long-term.
Also I would suggest to think about the business long term and seeing if you can increase the revenue enough to enable you to hire a part-timer who can be of great help in case a similar event happens.
We are also a small cloud solution provider (we focus on ML API's) and over the years it has become clear to us that when you use cloud hardware (either dedicated or virtual), from time to time the outages periodically happen. RAM, HDD or other parts of the hardware just can malfunction anytime. So this is something which 100% needs to be taken into consideration when running any high availability online service over long-term.