Thank you for sharing your dream with us. Please take everything that I share to the Holy Spirit as He Alone gives the accurate interpretation.
Perhaps, someone (could be the enemy as well) is attacking you in a private manner in an area of stability could be work or a ministry in church. This attack starts of being like one issue but multiplies (the nature of the issues are represented by the type of snakes). The smaller issue might have the most pronounced effect on you but, thankfully, it won’t be permanent and was ‘killed’. I’m unclear at this time if the number of snakes represents three time periods or three issues. Pray that God averts it or gives you the Grace to go through it unscathed.
Look up scripture that corresponds with 1:30 in case there is a message for you there as well.