Some sound advice there,
Make sure you have funds/savings. There is a lot of talk on here about No Money Down Deals and BMV but unless your first deal is going to give you a nice cashback, it is easy to come unstuck.
You may struggle to get tenants straight away, there are the PIR Electrical Check, Gas Check etc to do. If tenants move and dont pay it will still take time to move them on. As Sara suggests, having funds to cover yourself for 3 months is a good start.
If you don't go after what you want, you'll never have it. If you don't ask, the answer is always no. If you don't step forward, you're always in the same place.
When you believe you can...you can!