Forex

I am new to Fx but since I have have some savings in the UK in pounds and currently live in Switzerland, I would like to know if someone can anticipate the trend of the ex rate. I am just getting nervous since the rate is dropping every day and my pounds are worth less and less in CHF. Should I convert my GBP in CHF right now or should I wait until the ex rate recovers (ideally 2.4). Can someone help? Thanks