When you signed on, you applied for SWA while waiting on your jobseeker's claim. SWA is a means-tested payment.
As you are living at home, your parent's income is assessed (this is called benefit and priviledge). The means assessed against you because of your parent's income has been calculated at €180 per week.
If you are under 20 years, the maximum amount of SWA you are entitled to is €100 per week - as your means are greater than that, you are entitled to nothing.
Depending on your employment record and your PRSI contributions, you may qualify for Jobseeker's Benefit which isn't means-tested. If you don't, then you will have to wait until the means test for Jobseeker's Allowance is carried out - it's similar to that for SWA so it's possible that you may not qualify.
The maximum rate of Jobseeker's Allowance for a person under 20 is also €100 per week.