Many people are very good in discouraging others from pursuing their dreams, and that is very bad, never you look back in your investment journey, don't be discourage by the present dip, always look beyond today and see the great potential of Bitcoin ahead .
Many will feel its taking too long, many will feel is too expensive to buy, but regardless of all this challenges keep pushing, don't relent, one day does trying to pull you out of track, those laughing at you will join and celebrate you.
I think investing in bitcoin is a personal decision and a game of interest, so once you have made up your mind , remain focused and stick to your investment decision and do not listing to the crowd. Nothing good comes easy, so many who invested before now are smiling today, and bitcoin has not stopped growing, investing today is still a good move and a good decision. Like you said , investing today will definitely make you happy tomorrow.