Hello @Sam_Vickerbond, good to know you are trying sharding. It can be little daunting if you are trying sharding for the first time. Here is the documentation / tutorial for Deploy Sharded Cluster from MongoDB Manual.
The documentation has the following steps (titled as Procedure) which will guide you to deploy a sharded cluster and shard a collection. Please follow those (the steps are detailed and are from the above link):
- Create the Config Server Replica Set
- Create the Shard Replica Sets
- Start a mongos for the Sharded Cluster
- Connect to the Sharded Cluster
- Add Shards to the Cluster
- Enable Sharding for a Database
- Shard a Collection
- Shard Key Considerations (useful to understand the importance of a shard key)