Aptitude
AIIC Conversations II: Conference interpreting – What it takes
Interpreting Schools
AIIC Interpreting Schools & Programmes Directory
An Interview with Student Interpreters at Middlebury USA – ATA blog
How to Practise
Self-training by the European Commission
Using Audacity for dual track recording of interpreting practice
How to cope with the bad days. Glendon MCI
Practise by not interpreting – Gillies
Where to Practise
Many of these groups are for interpreters rather than students, however, rules and personal situations vary so you may be able to participate.