I am praying to GOD that halving may come next year. and till than I will collect 10 to 15 btc for sale..
Well, good luck with that. The halving coming next year would mean that hashing power drops dramatically within the next days, which would be an indication that the network may have serious health issues. So I wouldn't pray for that...
Since you just want to sell your Bitcoin for fiat junk money and are not genuinely interested in owning Bitcoin as a new, sound form of money, you should not fear the halving at all. I would assume that your employer pays you based on the fiat value of your services, so the block reward has no direct influence on your pay. The only relevant factor will be the fiat/btc exchange rate.
So if the BTC valuation in fiat junk money increases, you may be paid less BTC, but still the same amount in fiat. So there is nothing to fear for you.
ya.ya.yo!