Looking at your domains, you probably should.
MSTER.CO.UK
LA-CALIFORNIA.COM
FREQUENTFLYA.COM
FREQUENTFLYA.NET
FREQUENTFLYA.CO.UK
USEDCARSONLINE.CO.UK
SKYFLYA.COM
SKYFLYA.NET
SKYFLYA.CO.UK
EFLYA.COM
EFLYA.NET
EFLYA.CO.UK
CAREHOMECOVER.CO.UK
DISCOUNTPRINTERINK.CO.UK
PERSONALPA.COM virtual assistant
iCLOUDDOWNLOAD.COM
iCLOUDDOWNLOADS.COM
POSTUPNOTES.COM
H7B.CO.UK
H7B.UK
RECLAIMFEES.COM
CLOUDITDATA.COM
FUELSAVECARD.COM
FAREPRICEFINDER.COM
SELLINGMYOWNDWELLING.CO.UK
CABSRANKED.COM
FUNDITISE.COM
PHONEFOOTAGE.CO.UK
LINKEDUPLONDON.CO.UK
PREMIUMPAWN.CO.UK
PREMIUMPAWNBROKER.CO.UK
FUNDIFY.CO.UK
QWIKQUOTEINSURANCE.CO.UK
QUICKQUOTEINSURANCE.CO.UK
MEGABORDELL.DE
Domain investing takes alot of skill. Starts with good names (these are not) and develops into managing a portfolio and much, much more. Then, with solid names, proper exposure, and fair pricing, sales occur.
You didn't stand a chance with these domains. Look at what sells.
Whatever direction you decide to go, do your homework first....thoroughly. No one becomes a doctor, lawyer, or stock trader overnight.