Don't worry Chrisy, no one is expecting you to be a 'professional' at this point in time. But to be constructive, which is what I guess 250 kts was trying to be
, it's not advisable to type in text speak on here as the grammar police will be all over you like a rash - but I'm sure you knew that already!
If you look further on the NATS website it will give you all the answers you are looking for. The course length depends on the discipline; Aerodrom, Approach or Area. Area is the longest with approximately 12 months of college. Aerodrome and approach, correct me if I'm wrong are around 6 months.